Update RELEASENOTE.md
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pascalberger/docfx,928PJY/docfx,dotnet/docfx,928PJY/docfx,superyyrrzz/docfx,hellosnow/docfx,928PJY/docfx,DuncanmaMSFT/docfx,hellosnow/docfx,superyyrrzz/docfx,dotnet/docfx,superyyrrzz/docfx,dotnet/docfx,DuncanmaMSFT/docfx,hellosnow/docfx,pascalberger/docfx,pascalberger/docfx