adds comment about creation of database

cgi-example/db.py

@@ -1,6 +1,13 @@
 import sqlite3
 from sqlite3 import Error
 
+""" Create database with:
+        sqlite3 db/cgi-example.sqlite3 < create_schema.sql
+
+    Then give write permission to the both the database
+    and the containing directory "db" to the user that your
+    gemini server runs as
+"""
 database = r"db/cgi-example.sqlite3"
 
 def create_connection():