updates to the .env.example template

Author: kelsicw

.env.example

@@ -1,5 +1,7 @@
-# This is a template for the .env file where you should store your MongoDB URI.
+# This is a template for the .env file where you should store your MongoDB URI for your User database.
 # Duplicate this file in the root directory, and then rename the duplicated file to '.env'
 # Paste the MongoDB URI for your User database in place of the example URI provided below.
+# This variable will be used in electron/models/UserModel.ts to connect the database and store user information.
+# Once this is set up, you can create new users, log in, and have your data persist between sessions.
 
 USER_DB_URI='mongodb+srv://yourusername:password@cluster.k2o8dgn.mongodb.net/'