add some more readme information

[littleskunk]

• script dependencies.
• setup introduction.
• script can be modified for other repositories as well.
• new pull request -> new binary with pull request repository and branch
• new commit on pull request -> new binary with pull request repository and branch
• create a release with the name "autobin draft release" -> new binary with release tag / base branch
• new commit on base branch. ! no change tracker. no new binary. manual delete the binary if you need a new one. create a issue for better changetracker?

[littleskunk]

3c6304012d519dec148f52954e1dab6689110f8b