21. Test for diverse extensions
21.1. extlinks
Test diverse links: issue 1000 [http://bugs.python.org/issue1000] and http://python.org/dev/, also with explicit caption [http://bugs.python.org/issue1042].
Test diverse links: issue 1000 [http://bugs.python.org/issue1000] and http://python.org/dev/, also with explicit caption [http://bugs.python.org/issue1042].