Add links to diffs on Github in changelog (PowerShell#11652)

* Use consistent date format in markdown files

Change to international date format to match date format in `CHANGELOG/6.1.md` etc.

* Add links to compare views on Github

Author: xtqqczze

CHANGELOG/6.0.md

@@ -1,6 +1,6 @@
 # 6.0 Changelog
 
-## v6.0.0 - 2018-01-10
+## [6.0.0] - 2018-01-10
 
 ### Breaking changes
 
@@ -33,7 +33,7 @@
 - Fix incorrect release date on the changelog (#5698) (Thanks @SwarfegaGit!)
 - Add instructions to deploy `win-arm` build on Windows IoT (#5682)
 
-## v6.0.0-rc.2 - 2017-12-14
+## [6.0.0-rc.2] - 2017-12-14
 
 ### Breaking changes
 
@@ -107,7 +107,7 @@ work is required for Microsoft to continue to sign and release packages from the
 - Remove exclusion for hang and add context exception for remaining instances (#5595)
 - Replace `strlen` with `strnlen` in native code (#5510)
 
-## v6.0.0-rc - 2017-11-16
+## [6.0.0-rc] - 2017-11-16
 
 ### Breaking changes
 
@@ -216,7 +216,7 @@ work is required for Microsoft to continue to sign and release packages from the
 - Set `requestedExecutionLevel` to `asInvoker` for `pwsh.exe` on Windows. (#5285)
 - Add `HighEntropyVA` to building pwsh. (#5455)
 
-## v6.0.0-beta.9 - 2017-10-24
+## [6.0.0-beta.9] - 2017-10-24
 
 ### Breaking changes
 
@@ -317,7 +317,7 @@ work is required for Microsoft to continue to sign and release packages from the
 - Fix VSCode `launch.json` to point to `pwsh`. (#5189)
 - Add example of how to create .NET Core cmdlet with Visual Studio. (#5096)
 
-## v6.0.0-beta.8 - 2017-10-05
+## [6.0.0-beta.8] - 2017-10-05
 
 ### Breaking changes
 
@@ -422,7 +422,7 @@ work is required for Microsoft to continue to sign and release packages from the
 * Added instructions to get permission to use PowerShell image assets. (#4938)
 * Added demo for using Windows PowerShell modules. (#4886)
 
-## v6.0.0-beta.7 - 2017-09-13
+## [6.0.0-beta.7] - 2017-09-13
 
 ### Breaking change
 
@@ -497,7 +497,7 @@ work is required for Microsoft to continue to sign and release packages from the
 * Update using-vscode.md to use the new exe path (#4736)
 * Update coding guidelines to make it more concrete and useful in a review process (#4754)
 
-## v6.0.0-beta.6 - 2017-08-24
+## [6.0.0-beta.6] - 2017-08-24
 
 ### Breaking change
 
@@ -567,7 +567,7 @@ PowerShell 6.0 will be exclusively built on top of CoreCLR,
 so we are removing a large amount of code that's built only for FullCLR.
 To read more about this, check out [this blog post](https://blogs.msdn.microsoft.com/powershell/2017/07/14/powershell-6-0-roadmap-coreclr-backwards-compatibility-and-more/).
 
-## v6.0.0-beta.5 - 2017-08-02
+## [6.0.0-beta.5] - 2017-08-02
 
 ### Breaking changes
 
@@ -625,7 +625,7 @@ PowerShell 6.0 will be exclusively built on top of CoreCLR,
 so we are removing a large amount of code that's built only for FullCLR.
 To read more about this, check out [this blog post](https://blogs.msdn.microsoft.com/powershell/2017/07/14/powershell-6-0-roadmap-coreclr-backwards-compatibility-and-more/).
 
-## v6.0.0-beta.4 - 2017-07-12
+## [6.0.0-beta.4] - 2017-07-12
 
 ## Windows PowerShell backwards compatibility
 
@@ -669,7 +669,7 @@ For more information on this, we invite you to read [this blog post explaining P
 
 - Added recommended settings for VS Code. (#4054) (Thanks to @iSazonov!)
 
-## v6.0.0-beta.3 - 2017-06-20
+## [6.0.0-beta.3] - 2017-06-20
 
 ### Breaking changes
 
@@ -727,7 +727,7 @@ For more information on this, we invite you to read [this blog post explaining P
 - Make hosting PowerShell Core in your own .NET applications much easier by refactoring PowerShell Core to use the default CoreCLR loader. (#3903)
 - Update `Add-Type` to support `CSharpVersion7`. (#3933) (Thanks to @iSazonov)
 
-## v6.0.0-beta.2 - 2017-06-01
+## [6.0.0-beta.2] - 2017-06-01
 
 ### Support backgrounding of pipelines with ampersand (`&`) (#3360)
 
@@ -761,7 +761,7 @@ For more information on this, we invite you to read [this blog post explaining P
 - Fix an issue where PSReadline was not rendering multi-line prompts correctly on macOS/Linux. (#3867)
 - Fix an issue where PSReadline was not working on Nano Server. (#3815)
 
-## v6.0.0-beta.1 - 2017-05-08
+## [6.0.0-beta.1] - 2017-05-08
 
 ### Move to .NET Core 2.0 (.NET Standard 2.0 support)
 
@@ -837,7 +837,7 @@ If you have any questions or comments about our telemetry, please file an issue.
 - Improve error messages for `ValidateCountAttribute`. (#3656) (Thanks to @iSazonov)
 - Update `ValidatePatternAttribute`, `ValidateSetAttribute` and `ValidateScriptAttribute` to allow users to more easily specify customized error messages. (#2728) (Thanks to @powercode)
 
-## v6.0.0-alpha.18 - 2017-04-05
+## [6.0.0-alpha.18] - 2017-04-05
 
 ### Progress Bar
 
@@ -874,7 +874,7 @@ We made a number of fixes to the progress bar rendering and the `ProgressRecord`
 - Fix the JEA transcription to include the endpoint configuration name in the transcript header. (#2890)
 - Fix `Get-Help` in a JEA session. (#2988)
 
-## v6.0.0-alpha.17 - 2017-03-08
+## [6.0.0-alpha.17] - 2017-03-08
 
 - Update PSRP client libraries for Linux and Mac.
     - We now support customer configurations for Office 365 interaction, as well as NTLM authentication for WSMan based remoting from Linux (more information [here](https://github.com/PowerShell/psl-omi-provider/releases/tag/v1.0.0.18)). (#3271)
@@ -903,7 +903,7 @@ We made a number of fixes to the progress bar rendering and the `ProgressRecord`
 - Remove year from PowerShell copyright banner at start-up. (#3204) (Thanks to @kwiknick!)
 - Fixed spelling for the property name `BiosSerialNumber` for `Get-ComputerInfo`. (#3167) (Thanks to @iSazonov!)
 
-## v6.0.0-alpha.16 - 2017-02-15
+## [6.0.0-alpha.16] - 2017-02-15
 
 - Add `WindowsUBR` property to `Get-ComputerInfo` result
 - Cache padding strings to speed up formatting a little
@@ -918,7 +918,7 @@ We made a number of fixes to the progress bar rendering and the `ProgressRecord`
 - Fix parser error reporting for incomplete input to allow defining class in interactive host
 - Add the `RoleCapabilityFiles` keyword for JEA support on Windows
 
-## v6.0.0-alpha.15 - 2017-01-18
+## [6.0.0-alpha.15] - 2017-01-18
 
 - Use parentheses around file length for offline files
 - Fix issues with the Windows console mode (terminal emulation) and native executables
@@ -932,7 +932,7 @@ We made a number of fixes to the progress bar rendering and the `ProgressRecord`
 - `Invoke-RestMethod` improvements for non-XML non-JSON input
 - PSRP remoting now works on CentOS without addition setup
 
-## v6.0.0-alpha.14 - 2016-12-14
+## [6.0.0-alpha.14] - 2016-12-14
 
 - Moved to .NET Core 1.1
 - Add Windows performance counter cmdlets to PowerShell Core
@@ -947,7 +947,7 @@ We made a number of fixes to the progress bar rendering and the `ProgressRecord`
 - Fix `Invoke-WebRequest` with non-text responses on non-Windows platforms
 - `Write-Progress` performance improvement from `alpha13` reverted because it introduced crash with a race condition
 
-## v6.0.0-alpha.13 - 2016-11-22
+## [6.0.0-alpha.13] - 2016-11-22
 
 - Fix `NullReferenceException` in binder after turning on constrained language mode
 - Enable `Invoke-WebRequest` and `Invoke-RestMethod` to not validate the HTTPS certificate of the server if required.
@@ -973,7 +973,7 @@ We made a number of fixes to the progress bar rendering and the `ProgressRecord`
 - Update build scripts to support win7-x86 runtime
 - Move PackageManagement code/test to oneget.org
 
-## v6.0.0-alpha.12 - 2016-11-03
+## [6.0.0-alpha.12] - 2016-11-03
 
 - Fix `Get-ChildItem -Recurse -ErrorAction Ignore` to ignore additional errors
 - Don't block pipeline when running Windows EXE's
@@ -992,7 +992,7 @@ We made a number of fixes to the progress bar rendering and the `ProgressRecord`
 - Exclude Registry and Certificate providers from UNIX PS
 - Update PowerShell Core to consume .Net Core preview1-24530-04
 
-## v6.0.0-alpha.11 - 2016-10-17
+## [6.0.0-alpha.11] - 2016-10-17
 
 - Add '-Title' to 'Get-Credential' and unify the prompt experience
 - Update dependency list for PowerShell Core on Linux and OS X
@@ -1008,7 +1008,7 @@ We made a number of fixes to the progress bar rendering and the `ProgressRecord`
 - Fix 'Get-Help -Online' in PowerShell Core on Windows
 - Spelling/grammar fixes
 
-## v6.0.0-alpha.10 - 2016-09-15
+## [6.0.0-alpha.10] - 2016-09-15
 
 - Fix passing escaped double quoted spaces to native executables
 - Add DockerFiles to build each Linux distribution
@@ -1020,13 +1020,13 @@ We made a number of fixes to the progress bar rendering and the `ProgressRecord`
 - Fix `Install-Module` version comparison bug
 - Spelling fixes
 
-## v6.0.0-alpha.9 - 2016-08-15
+## [6.0.0-alpha.9] - 2016-08-15
 
 - Better man page
 - Added third-party and proprietary licenses
 - Added license to MSI
 
-## v6.0.0-alpha.8 - 2016-08-11
+## [6.0.0-alpha.8] - 2016-08-11
 
 - PowerShell packages pre-compiled with crossgen
 - `Get-Help` content added
@@ -1049,7 +1049,7 @@ We made a number of fixes to the progress bar rendering and the `ProgressRecord`
 - Desired State Configuration MOF compilation ported to Linux
 - Windows 2012 R2 / Windows 8.1 remoting enabled
 
-## v6.0.0-alpha.7 - 2016-07-26
+## [6.0.0-alpha.7] - 2016-07-26
 
 - Invoke-WebRequest and Invoke-RestMethod ported to PowerShell Core
 - Set PSReadline default edit mode to Emacs on Linux
@@ -1067,7 +1067,7 @@ We made a number of fixes to the progress bar rendering and the `ProgressRecord`
 - FileCatalog cmdlets added back for Windows
 - Get-ComputerInfo cmdlet added back for Windows
 
-## v0.6.0 - 2016-07-08
+## [0.6.0] - 2016-07-08
 
 - Targets .NET Core 1.0 release
 - PowerShellGet enabled
@@ -1081,7 +1081,7 @@ We made a number of fixes to the progress bar rendering and the `ProgressRecord`
 - Source Depot synced to baseline changeset 717473
 - SecureString stub replaced with .NET Core package
 
-## v0.5.0 - 2016-06-16
+## [0.5.0] - 2016-06-16
 
 - Paths given to cmdlets are now slash-agnostic (both / and \ work as directory separator)
 - Lack of cmdlet support for paths with literal \ is a known issue
@@ -1102,7 +1102,7 @@ We made a number of fixes to the progress bar rendering and the `ProgressRecord`
 - Linux xUnit tests are running again
 - Many more Pester tests are running
 
-## v0.4.0 - 2016-05-17
+## [0.4.0] - 2016-05-17
 
 - PSReadline is ported and included by default
 - Original Windows ConsoleHost is ported and replaced CoreConsoleHost
@@ -1113,7 +1113,7 @@ We made a number of fixes to the progress bar rendering and the `ProgressRecord`
 - Microsoft.Management.Infrastructure.Native replaced with package
 - Many more Pester tests
 
-## v0.3.0 - 2016-04-11
+## [0.3.0] - 2016-04-11
 
 - Supports Windows, Nano, OS X, Ubuntu 14.04, and CentOS 7.1
 - .NET Core packages are build rc3-24011
@@ -1135,7 +1135,7 @@ We made a number of fixes to the progress bar rendering and the `ProgressRecord`
 - Documentation was completely overhauled
 - Many more Pester and xUnit tests added
 
-## v0.2.0 - 2016-03-08
+## [0.2.0] - 2016-03-08
 
 - Supports Windows, OS X, Ubuntu 14.04, and CentOS 7.1
 - .NET Core packages are build 23907
@@ -1146,6 +1146,36 @@ We made a number of fixes to the progress bar rendering and the `ProgressRecord`
 - `Add-Type` now works
 - PowerShell code merged with upstream `rs1_srv_ps`
 
-## v0.1.0 - 2016-02-23
+## 0.1.0 - 2016-02-23
 
 - Supports Windows, OS X, and Ubuntu 14.04
+
+[6.0.0]: https://github.com/PowerShell/PowerShell/compare/v6.0.0-rc.2...v6.0.0
+[6.0.0-rc.2]: https://github.com/PowerShell/PowerShell/compare/v6.0.0-rc...v6.0.0-rc.2
+[6.0.0-rc]: https://github.com/PowerShell/PowerShell/compare/v6.0.0-beta.9...v6.0.0-rc
+[6.0.0-beta.9]: https://github.com/PowerShell/PowerShell/compare/v6.0.0-beta.8...v6.0.0-beta.9
+[6.0.0-beta.8]: https://github.com/PowerShell/PowerShell/compare/v6.0.0-beta.7...v6.0.0-beta.8
+[6.0.0-beta.7]: https://github.com/PowerShell/PowerShell/compare/v6.0.0-beta.6...v6.0.0-beta.7
+[6.0.0-beta.6]: https://github.com/PowerShell/PowerShell/compare/v6.0.0-beta.5...v6.0.0-beta.6
+[6.0.0-beta.5]: https://github.com/PowerShell/PowerShell/compare/v6.0.0-beta.4...v6.0.0-beta.5
+[6.0.0-beta.4]: https://github.com/PowerShell/PowerShell/compare/v6.0.0-beta.3...v6.0.0-beta.4
+[6.0.0-beta.3]: https://github.com/PowerShell/PowerShell/compare/v6.0.0-beta.2...v6.0.0-beta.3
+[6.0.0-beta.2]: https://github.com/PowerShell/PowerShell/compare/v6.0.0-beta.1...v6.0.0-beta.2
+[6.0.0-beta.1]: https://github.com/PowerShell/PowerShell/compare/v6.0.0-alpha.18...v6.0.0-beta.1
+[6.0.0-alpha.18]: https://github.com/PowerShell/PowerShell/compare/v6.0.0-alpha.17...v6.0.0-alpha.18
+[6.0.0-alpha.17]: https://github.com/PowerShell/PowerShell/compare/v6.0.0-alpha.16...v6.0.0-alpha.17
+[6.0.0-alpha.16]: https://github.com/PowerShell/PowerShell/compare/v6.0.0-alpha.15...v6.0.0-alpha.16
+[6.0.0-alpha.15]: https://github.com/PowerShell/PowerShell/compare/v6.0.0-alpha.14...v6.0.0-alpha.15
+[6.0.0-alpha.14]: https://github.com/PowerShell/PowerShell/compare/v6.0.0-alpha.13...v6.0.0-alpha.14
+[6.0.0-alpha.13]: https://github.com/PowerShell/PowerShell/compare/v6.0.0-alpha.12...v6.0.0-alpha.13
+[6.0.0-alpha.12]: https://github.com/PowerShell/PowerShell/compare/v6.0.0-alpha.11...v6.0.0-alpha.12
+[6.0.0-alpha.11]: https://github.com/PowerShell/PowerShell/compare/v6.0.0-alpha.10...v6.0.0-alpha.11
+[6.0.0-alpha.10]: https://github.com/PowerShell/PowerShell/compare/v6.0.0-alpha.9...v6.0.0-alpha.10
+[6.0.0-alpha.9]: https://github.com/PowerShell/PowerShell/compare/v6.0.0-alpha.8...v6.0.0-alpha.9
+[6.0.0-alpha.8]: https://github.com/PowerShell/PowerShell/compare/v6.0.0-alpha.7...v6.0.0-alpha.8
+[6.0.0-alpha.7]: https://github.com/PowerShell/PowerShell/compare/v0.6.0...v6.0.0-alpha.7
+[0.6.0]: https://github.com/PowerShell/PowerShell/compare/v0.5.0...v0.6.0
+[0.5.0]: https://github.com/PowerShell/PowerShell/compare/v0.4.0...v0.5.0
+[0.4.0]: https://github.com/PowerShell/PowerShell/compare/v0.3.0...v0.4.0
+[0.3.0]: https://github.com/PowerShell/PowerShell/compare/v0.2.0...v0.3.0
+[0.2.0]: https://github.com/PowerShell/PowerShell/compare/v0.1.0...v0.2.0