Python example markup breaking

[peterjc]

See peterjc/mediawiki_to_git_md#16 and wiki/User:Davidw/cookbook.mediawiki, easy to fix by hand if its the only example of this syntax variant which my conversion script failed to handle.

[peterjc]

Also http://biopython.org/wiki/PAML has an issue due to the original mediawiki having </python> on the end of a line (not as a new line): peterjc/mediawiki_to_git_md#17

[peterjc]

These should all be fixed by the next import (waiting a day or so to see if we can fill in any more user names on #2).

[peterjc]

Fixed as part of the recent re-import.