You can push the packages if you have permissions, either automatically using build Release or manually
.\Build BuildPackage
set APIKEY=...
..\fsharp\.nuget\nuget.exe push bin\ExcelProvider.1.0.1.nupkg %APIKEY% -Source https://nuget.org
git tag 1.0.1
git push https://github.com/fsprojects/ExcelProvider --tags