Add documentation to project
This MR adds metadata information for automatically deploying documentation using mkdocs
.
The CI pipeline is extended by two additional steps in which the static documentation is built and secondly deployed to the EOS directory of the newly minted CERN service account umamibot
.
The documentation will only be built for modifications of the master branch of the original gitlab project.
The documentation will be accessible at http://umami-docs.web.cern.ch.
Closes #13 (closed)