GitLab

We use TeXLive, where it doesn't occur

Some cleanup

Add more examples, a clearer path and some clear
statements on why to use Docker.

I decided to 'deprecate' manual usage.
We now use minted, and as such have brought in
Python as a dependency.
This is just getting too much, and teaching about
Docker once vs. all the other manual steps should
be absolutely worth it in the long run.

Also just CI config accordingly

Also update links to GitLab repo

YATT (Yet Another Thesis Template) can now be retired, since that repo is now pretty much a subset of this one here

Just for fun

Move info to https://github.com/alexpovel/latex-extras-docker

The README is for git, so move LaTeX content to cookbook

Moving from repo 'gitlab and latex ci presentation'