Option to create a tag instead of a release

Seems GitHub releases are in fact tags with steroids, so it would be cool to have a boolean flag to create easily a tag or a release.

My use case is to create releases only on NodeOS master branch, but also allow to make releases for the commits in other branchs that pass the tests, but instead of doing full releases, I want to do "tag releases" so they are hidden from the list of "official" releases (the ones from the master branch).