Connecting with GitHub Actions and Buildtools

[versionbaygt]

I think it would be nice to have a section explaining what is the right way to:

• Describe buildtool for making toolboxes for releases
• use GitHub Action Build so that the release process is automated
• enhance example of how to do a matrix release with setup action so that when people choose in the toolbox packaging project that information gets reflected in the setup action:
• also maybe share a few words on simple github workflows (maybe an image for indvidual user and what it looks like with multiple maintainers)
• would be nice to share a few words on how get help e.g. CONTRIBUTORS.md or something

[rpurser47]

Similar to my comment on #20 , I think I'll do that in a separate repository and just refer to it here.