Commas in internal link targets lead to 404s
Internal links to documents that have a comma as part of their path lead to documents that don't exist. The source files from DokuWiki appear to have stripped the commas from the path before saving. We should update and rerun the fixup scripts to account for this.
eg, as of 44e232d0 workshops/start.md
includes a link to /workshops/multiboot_usb_and_jitsi,_matrix_and_irc
which doesn't exist.