Update README

janza · janza · commit 09c3af90281e · 2017-05-18T23:02:24.000+02:00
diff --git a/README.md b/README.md
@@ -1,3 +1,10 @@
 [![Docker Automated buil](https://img.shields.io/docker/automated/jjanzic/docker-python3-opencv.svg)]()
 
 Docker image with python 3.6 and opencv 3.2
+
+Usage:
+
+    docker run -it docker-python3-opencv python
+    >>> import cv2
+
+Image tagged with :contrib contains docker image built with [contrib modules](https://github.com/opencv/opencv_contrib/)
