Include setup in README

Fixes #11

README.md

@@ -2,3 +2,15 @@ access-control
 ==============
 
 Code for the door access control system
+
+auto-start
+----------
+
+The following should be placed in /etc/rc.local to start the door
+control daemon and the flask interface.
+
+```
+screen -d -m -S access-control sudo python /home/pi/access-control/daemon.py
+screen -S access-control -X title daemon
+screen -S access-control -X screen -t flask python /home/pi/access-control/run_flask.py
+```