about-us.md: remove broken link
Thanks to @psh35 for reporting. It's unclear what this link should point to so, for the moment, remove it.
Closes #8 (closed)
Edited by Dr Rich Wareham
GitLab will be updated on 12-Feb-2026 between 12:00 and 14:00. There may be small periods of service instability.
Thanks to @psh35 for reporting. It's unclear what this link should point to so, for the moment, remove it.
Closes #8 (closed)