Update maintainers.MD with steps to publish package (#174)

MAINTAINERS.md

@@ -14,22 +14,55 @@ Fork [minio-dotnet upstream](https://github.com/minio/minio-dotnet/fork) source
 
 Minio .NET Library uses nuget for its dependency management https://nuget.org/
 
-### Publishing new package
+### Publishing a new package
+#### Update package Version
+Update Minio.Core/Minio.Core.csproj with the next version in the <Version></Version> tag
+ <Version>1.0.2</Version>
+Update Minio.Net452/Properties/AssemblyInfo.cs with the next AssemblyVersion and AssemblyFileVersion
+[assembly: AssemblyVersion("1.0.2.0")]
+[assembly: AssemblyFileVersion("1.0.2.0")]
+Update the <version> tag in Minio.nuspec and Minio.core.nuspec
 
-#### Setup your nuget and download all dependencies
+#### Build
+```powershell
+> dotnet msbuild /p:Configuration=Release
+
+```
+or Build entire solution from Visual Studio
 
+#### Verify
 ```powershell
-> nuget restore
+> cd Minio.Functional.Tests
+> dotnet run 
 ```
 
-#### Compile the project and build a package
+or this project can be selected from Visual Studio and click Run.
 
+#### Setup your nuget and download all dependencies
 ```powershell
-> .\packages\MSBuild.0.1.2\tools\Windows\MSBuild.exe /t:Rebuild /p:Configuration=Release
-> nuget pack Minio/Minio.csproj
+> nuget restore
+```
+
+#### Build a package
+```powershell
+> nuget pack Minio.nuspec
+> nuget pack Minio.core.nuspec
 ... package built ...
 ```
 
 #### Go to nuget.org
+Login to nuget.org to [upload a package through browser](https://www.nuget.org/users/account/LogOn?ReturnUrl=%2Fpackages%2Fupload).
+Upload both the packages generated by the previous step.
+
+#### Tag
+Tag and sign your release commit, additionally this step requires you to have access to Minio's trusted private key.
+$ git tag -s 1.0.2
+$ git push
+$ git push --tags
+
+#### Announce
+Announce new release by adding release notes at https://github.com/minio/minio-dotnet/releases from trusted@minio.io account. Release notes requires two sections highlights and changelog. Highlights is a bulleted list of salient features in this release and Changelog contains list of all commits since the last release.
+
+To generate changelog
 
-Sign into nuget.org to [upload a package through browser](https://www.nuget.org/users/account/LogOn?ReturnUrl=%2Fpackages%2Fupload).
+git log --no-color --pretty=format:'-%d %s (%cr) <%an>' <last_release_tag>..<latest_release_tag>