docs(updating): change version numbers for old migration docs

Author: brandyscarney

docs/updating/4-0.md

@@ -36,7 +36,7 @@ In Ionic 4, the package name is `@ionic/angular`. Uninstall Ionic 3 and install
 
 ```shell
 $ npm uninstall ionic-angular
-$ npm install @ionic/angular
+$ npm install @ionic/angular@v4-lts
 ```
 
 While migrating an app, update the imports from `ionic-angular` to `@ionic/angular`.

docs/updating/5-0.md

@@ -19,19 +19,19 @@ For a **complete list of breaking changes** from Ionic 4 to Ionic 5, please refe
 For Angular based projects, you can simply run:
 
 ```shell
-npm install @ionic/angular@latest @ionic/angular-toolkit@latest --save
+npm install @ionic/angular@v5-lts @ionic/angular-toolkit@4.0.0 --save
 ```
 
 For React projects, you can run:
 
 ```shell
-npm install @ionic/react@latest @ionic/react-router@latest ionicons@latest
+npm install @ionic/react@v5-lts @ionic/react-router@v5-lts ionicons@5.5.3
 ```
 
 For Stencil / vanilla JS projects, you can run:
 
 ```shell
-npm i @ionic/core@latest --save
+npm i @ionic/core@v5-lts --save
 ```
 
 If you would like a fresh project starter, a new project base can be created from the CLI and an existing app can be migrated over manually.