Wiki documentation fixes — missing wiki pages (incl. BergenTop) now showing, plus two pending PRs

Some wiki pages that clearly existed weren’t showing up on the docs site (https://delph-in.github.io/docs/) — most visibly, BergenTop was 404ing despite being linked from SummitTop. This is because the site generator only renders a page if it’s manually registered in sitesdefinitions.json, and that step is all too easy to miss.

With some help from Claude, I have tried to make this more automatic.

Fix (live now): the build now auto-registers any wiki page linked to from a page already on the site. BergenTop and 16 other previously-invisible pages (including the rest of this year’s Bergen summit pages) are live: DELPH-IN

Two PRs open for review:

Feedback welcome, especially from @EricZinda, if I don’t hear from anyone by the end of the summit, I will merge these.

Francis