Add pre-commit config

docs/changelog.py

@@ -37,7 +37,6 @@ import os
 import re
 
 from git import Repo
-
 from github import Github
 
 this_repo = Repo(os.path.join(os.path.dirname(__file__), ".."))

docs/faq.rst

@@ -119,7 +119,7 @@ end of the file, like so::
   #!/bin/sh
   # automatically configured by git-annex
   git annex post-receive
-  
+
   /home/foo/src/git-hooks/sigal-git-hook
 
 This assumes, of course, that you are running your own Git server;

docs/plugins.rst

@@ -145,4 +145,3 @@ ZIP Gallery plugin
 ==================
 
 .. automodule:: sigal.plugins.zip_gallery
-