Relative links from project summaries resulted in raw pages rather
than rendered pages for both mercurial and git repositories.
This patch is intended to match the behavior of git.sr.ht and hg.sr.ht
README rendering by passing the previous raw links as secondary link
prefixes (for rendering images) but otherwise link to rendered
related ticket: todo.sr.ht/~sircmpwn/hub.sr.ht/67
Seems like curl in Debian images is too old to have support for
--no-progress-meter introduced in curl 7.67. This can be done in a
forward compatible way by using -sS.
-s will silence output in general, but -S (--show-error) will unsilence any errors.