Add some notes about setup and running jon

README.md

@@ -2,10 +2,26 @@
 
 > the tamer of garfield
 
+## Setup
+
+```
+pip install -r requirements.txt
+```
+
+You should probably use a virtualenv for that.
+
+## Running
+
+```
+flask --app jon run --debug
+```
+
+`--debug` restarts the server when a source file changes.
+
 ## fsmi-db forward
 
 ```
-ssh -nNTvL 5432:fsmi-db.fsmi.uni-karlsruhe.de:5432 fsmi-login.fsmi.uni-karlsruhe.de
+ssh -nNTvL 5432:fsmi-db.fsmi.org:5432 fsmi-login.fsmi.org
 ```
 
 ## TODO