Add Helm documentation. Refactor doc for both go and helm ops. Include mkdocs staff

Solves https://gitlab.cern.ch/webservices/webframeworks-planning/-/issues/488

This MR will include:

• Documentation for the Helm Operator
• Refactor of the documentation to split between different operators documentation.
• Add mkdocs stuff to be deployed as static site.

requested review from @alossent

assigned to @estevesm

assigned to @kolodzie

changed the description

added 1 commit

• fbe81238 - Apply 1 suggestion(s) to 1 file(s)

Compare with previous version

added 1 commit

• 78bdfcd8 - Apply 1 suggestion(s) to 1 file(s)

Compare with previous version

added 1 commit

• c85c8a2e - Apply 1 suggestion(s) to 1 file(s)

Compare with previous version

added 1 commit

• bf78e765 - Apply 1 suggestion(s) to 1 file(s)

Compare with previous version

resolved all threads

added 1 commit

• 79d4fa45 - Apply 1 suggestion(s) to 1 file(s)

Compare with previous version

added 2 commits

• 8ab66e62 - Fix name of the master branch (not main)
• 27ab3e00 - Merge branch 'helm-operator-doc' of...

Compare with previous version

approved this merge request