$tag for released and $SHA from npm-link.
We don't generate JSDoc directly from git at the moment but since this might be the case in the future and you have already done most of the work...
I suggest you detect if the git repositiory is montage's by running `git show -s --format=%B 11ccc5566986d891716837105385daaaf8884980` and testing if the message is "Even Rocky had a montage."