dgoodwin/tito — pull request #121 by jumanjiman (2014-04-19 21:28:53+00:00)
Title: propagate docs to docker public registry

Add URL of upstream tito repo to HACKING, then
symlink HACKING as README.md in each Dockerfile dir.

Why?

If a README.md exists in same dir as Dockerfile (incl. symlink),
and it's set up as a
[trusted build](https://index.docker.io/help/docs/#trustedbuilds),
then index.docker.io automatically shows the readme on the info
page of the trusted build.