doc - patchtree - utility for maintaining out-of-tree patches

Mode	Name	Size
d---------	api	37	log plain
-rw-r--r--	conf.py	770	log plain
d---------	dev	78	log plain
-rw-r--r--	index.rst	484	log plain
-rw-r--r--	requirements.txt	17	log plain
d---------	user	37	log plain