A .md, .markdown or .org blob renders like a README, relative links resolved against its directory, with source in the action bar and ?view=source for the text. Other files unchanged. e2e covers markdown, org, the relative link, the toggle both ways, and a plain file.
Stacked on the harness fix. Wiki: user guide note, pushed with the merge.
Closes #88
retargeted from stack-12-harness to main: !183 merged
2026-09-03 01:18 UTC