Add docker dev instructions

Dockerfile

@@ -0,0 +1,12 @@
+FROM python:3.6
+
+WORKDIR /app
+
+ADD . /app
+
+RUN pip install -r requirements.txt && \
+        python manage.py collectstatic --noinput
+
+EXPOSE 8000
+
+CMD ["python", "manage.py", "runserver", "0.0.0.0:8000"]

README.md

@@ -77,6 +77,13 @@ python manage.py runserver
 ```
 Please refer to Django documentation for a full list of options available here.
 
+### Development using docker
+
+```
+docker build . -t pyrigs
+docker run -it --rm -p=8000:8000 -v $(pwd):/app pyrigs
+```
+
 ### Sample Data ###
 Sample data is available to aid local development and user acceptance testing. To load this data into your local database, first ensure the database is empty:
 ```