Setup GitHub action for creating a release manually

[ModernRonin]

• push a nuget package
• create a github release

[304NotModified]

• push a nuget package

This is done right? -- > https://github.com/ModernRonin/ProjectRenamer/blob/master/.github/workflows/push-nuget.yml

[ModernRonin]

not quite, I don't create the github release yet

[ModernRonin]

(in case it's not clear what I mean by that: when you go to the "home page" of the repo, there's a box on the right with releases)