[docs] [issue20375] ElementTree: Document handling processing instructions

[Nikolaus Rath]

Nikolaus Rath added the comment:

Thanks for your feedback! I've attached an updated patch.

----------
Added file: http://bugs.python.org/file34708/issue20375.diff

_______________________________________
Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue20375>
_______________________________________