chore: include git push in release cmd (#66)

* chore: include git push in release cmd

* chore: correct error message and exit

release.cmd

@@ -4,6 +4,8 @@ git checkout master
 git pull || echo Could not pull changes from origin && exit /b
 
 dotnet run --project Versionize --framework net6.0 || echo Exiting. Could not create a new version using versionize && exit /b
+git push --follow-tags origin master || echo Exiting. Failed to push changes to repository && exit /b
+
 rm -rf nupkgs || echo ERROR && exit /b
 dotnet pack --output nupkgs --include-source --configuration Release --include-symbols || echo Exiting. Could not run dotnet pack. Remove any tags created by versionize && exit /b