[docs] [issue27519] update the references to http://mercurial.selenic.com

Roundup Robot added the comment: New changeset 2edae149e8c5 by Berker Peksag in branch 'default': Issue #27519: Update Mercurial links to mercurial-scm.org https://hg.python.org/devguide/rev/2edae149e8c5 ---------- nosy: +python-dev _______________________________________ Python tracker <report@bugs.python.org> <http://bugs.python.org/issue27519> _______________________________________