update: .evn.example (#48)

.env.example

@@ -1,8 +1,17 @@
 # MySQL Database connection details
-DB_HOST = 'mysql server host name'
-DB_USER = 'mysql username'
-DB_PASSWORD = 'mysql password'
-DB_NAME = 'name of the mysql database'
+DB_HOST = 'postgreSQL server host name'
+DB_USER = 'postgreSQL username'
+DB_PASSWORD = 'postgreSQL password'
+DB_NAME = 'name of the postgreSQL database'
 
 # Token for finshots-scout bot
 DISCORD_TOKEN = 'The discord bot application token comes here'
+
+# to setup the database: configure host, user, password and database name here and then run
+# python database_setup.py
+
+# to start the bot, run
+# python bot.py
+
+# database_updater.py is a script that updates the database with the latest news
+# this needs to be run periodically using a cron job or a scheduler