Add gunicorn to readme

README.md

@@ -33,3 +33,10 @@ python3 stechuhr_server/server.py
 Check the output to find the config directory. You might want to run it as a different user tho.
 
 There is also a systemctl unit file that you probably need to change to your needs
+
+In production it makes sense to run stechuhr with gunicorn:
+
+```bash
+source env/bin/activate
+gunicorn stechuhr_server.server:app
+```