Merge pull request dotnet#4972 from dotnet/rbhanda-patch-1

Update 5.0.0-preview.7.md

Merge pull request dotnet#4940 from dotnet/rbhanda-patch-1

Update 2.1.20.md

Merge pull request dotnet#4940 from dotnet/rbhanda-patch-1

Update 2.1.20.md

Merge pull request dotnet#4874 from dotnet/rbhanda-patch-1

Update 5.0.0-preview.6.md

Update releases.json

correct preview.1 runtime version

Update releases.json

correct preview.1 runtime version

Update releases.json

correct preview.1 runtime version

Merge pull request dotnet#4682 from dotnet/rbhanda-patch-1

Update Release notes with Github Announcement for May release

Merge pull request dotnet#4606 from dotnet/netapril

Release artifacts for .NET 5 Preview 3

Merge pull request dotnet#4504 from dotnet/rbhanda-patch-1

Update 5.0.0-preview.2.md