Add instructions to use Docker in README

README.md

@@ -2,7 +2,6 @@
 
 Organise your conferences.
 
-
 ## HowTo Test
 
 (you should work on a virtualenv)
@@ -16,7 +15,6 @@ pip install -U -r requirements.txt
 ./manage.py createsuperuser
 ```
 
-
 ## HowTo update translations
 
 ```bash
@@ -24,3 +22,17 @@ pip install -U -r requirements.txt
 poedit locale/fr/LC_MESSAGES/django.po
 ./manage.py compilemessages
 ```
+
+## Docker
+
+### Build
+
+    docker build -t ponyconf .
+
+### Start
+
+    ./test_site.bash
+
+### Configure
+
+    docker exec -it ponyconf ./manage.py createsuperuser