add isort script

README.rst

@@ -102,6 +102,13 @@
 
 It uses the super project’s `setup.cfg`_ and ``Dockerfile``.
 
+isort
+-----
+
+Run dockerized isort on current directory.
+
+``./isort --help`` for help
+
 setup.cfg
 ---------
 

isort

+#!/bin/sh
+/usr/bin/docker run --rm --volume $PWD:/mnt -ti xcgd/isort sh -c "cd /mnt && isort $*"