Merge pull request dotnet#1817 from shauheen/release/v0.8RC2

Cherry-pick for release 0.8

Merge pull request dotnet#1547 from shauheen/v07

Cherrypick for release 0.7

Merge pull request dotnet#1119 from shauheen/rc307

Cherrypick release notes for 0.6

Merge pull request dotnet#825 from shauheen/v0.5cp

Cherrypick to update release for 0.5

Add release notes for ML.NET 0.4 (dotnet#656)

Merge pull request dotnet#479 from shauheen/v0.3

Cherrypick to update release for V0.3

Update release notes link to use aka.ms. (dotnet#294) (dotnet#303)

Our release notes link is broken because the `Documentation` was renamed to `docs`. Fix this for the future to use a redirection link.

Add release notes for ML.NET 0.1 (dotnet#37)

* Add release notes for ML.NET 0.1

This closes issue dotnet#36