updating lab 7 readme

lab-7/README.md

+# Catflucks Application 
+
+Here is a new improved version of catflucks.
+
+It has the same functionality as the Lab 6 version, but more effort has
+been made to separate concerns (i.e. to separate database interaction, logic and presentation).
+
+**Noteworthy differences:**
++ The app configurables (i.e. installation specific variables) are now defined in config.py.
++ splash.py provides the main entry point to the app
++ A new template rendering function has been added to utils.py
++ The HTML is confined to .html files in the templates folder
+
+*It is still not perfect!* There is much more we could do to improve portability/reusability...
+Perhaps you can introduce further improvements to the **application design** in your own implementation?

lab-7/cgi-bin/splash.py

 #!/usr/bin/env python3
 
+"""
+	This script is the main entry point to
+	the catflucks application.
+"""
+
+# import modules from Python standard library
 from bson.objectid import ObjectId
 import cgi
 import cgitb
 cgitb.enable()
 
+# import custom modules
 from config import config
 import utils