Fix index page per new base font size
Remove man.sr.ht SSH host keys
man.sr.ht: document `toc` property in frontmatter
Fix typo in man.sr.ht manual
Document settings for wikis
Add an install manual for dispatch.sr.ht and dummy ones for man & todo
Remove docs for unimplemented features
Add YAMl frontmatter to all pages
Update location of "create wiki" button
Since man.sr.ht commit 3bb8bce4, the button has been at the top instead
of the bottom on mobile devices, unlike before.
Mention correct location of "create wiki" button on mobile
The sidebar (and button) is moved to the bottom on phones, so
indicate this accordingly.
Mention correct location for "create wiki" button
Add man.sr.ht host key to wiki