release 2.56.1 (dotnet#6194)

release 2.56 (dotnet#6147)

Co-authored-by: Yufei Huang <[email protected]>

Update azure-pipelines-master.yml for Azure Pipelines

release 2.54 (dotnet#5949)

remove updateGhPage temporarily to unblock release

release 2.53 (dotnet#5881)

release 2.52 (dotnet#5755)

release 2.51 (dotnet#5646)

Merge branch 'master' of github.com:dotnet/docfx into dev

release 2.49 (dotnet#5530)