This is abandoned, add maintainers

[roryrjb]

This repo is clearly abandoned, not necessarily on purpose, I know people are busy. Due to the amount of stars, it should survive and thrive. A lot of the people, including myself who are passionate about shell, who have left PRs could probably help out. My only PR is failing not due to any issues with it, but because there are broken links in the existing repo that are causing it to fail.

[jonatan-ivanov]

Fixing those issues is just a merge away: #346

[roryrjb]

@jonatan-ivanov nice! @alebcay if you could merge the above PR in that would be great, otherwise maybe add a few contributors or those who are interested to the project so this can be reviewed and merged by someone else and the repo can be maintained properly.

[andresgongora]

I would be available for reviewing. I always enjoy testing new bash code just for fun, so I wouldn't mind being assigned to pull requests, if it helps :)