Some confusion by reading about `install-update -a` command.

[dkotrada]

I am reading this page now.

At the bottom there is cargo install-update -a command suggestion.

I don't understand why is there Minimum Rust Version 1.5 badge? Rust nightly is 1.38 at the moment.

I am not native speaker and it is a little bit confusing to me. I did not seen this sentence This will allow you to use this command

For me it were better like that:

This will allow you to use cargo install-update -acommand ...

[dkotrada]

If it's ok #185