Update documentation site URL in README.md
FYI @roneil in case the fix should be propagated to other places I'm missing at this point.
GitLab Registry scheduled maintenance on Wednesday, October 09th 2024 as of 20:00h Geneva time for a period of 1 hour. Further information under https://cern.ch/otg0152540.
FYI @roneil in case the fix should be propagated to other places I'm missing at this point.