frontpage: use example repo from mercurial-scm.org The rendered result looks like this: """ $ hg clone https://www.mercurial- scm.org/repo/hello """ (It will be copied without any word breaks, the break is only visual.) The actual repo doesn't exist yet, but really should already, because the first thing new users will see when they try the old URL with 3.9-rc+ is a lengthy error message that Mercurial "could not negotiate a common security protocol (tls1.1+) with selenic.com..." Classy.