[META] Improve website CI
We should look into improving the CI suite we use for our website.
A couple of points that come to mind:
- Refactor linting into separate stage - #1705 (closed)
- Check ruby code - !7866 (merged)
- Check dead links - !8821 (closed)
- Check internal links - #1741 (closed)
- Check haml files - #1673
- Check md files - #1704
cc @axil
Edited by Matija Čupić