Environment Variables 
Each section of this file is an environment variable name.
For anything that has to do with an ID you want to turn on the Discord Developer Mode.
This option can be found under:
User Settings > Advanced > Developer ModeIDs can be obtained by right-clicking server icons, roles, etc. and copying the ID.
DISCORD_BOT_TOKEN 
Obtained under the bot tab in the discord developer panel.
APPLICATION_ID 
Obtained under the general information tab in the discord developer panel.
GUILD_ID 
ID of the dicord server where this bot is added.
WEBSERVER_PORT 
What port to run the web server under.
Usually 3000.
CNAME 
Change this to a real URL, or the address of your host if deploying into production. This is the actual URL pointing to the bot.
MONGODB_URL 
Connection string to your mongodb instance. If you need a free host MongoDB Atlas provides small databases for free; and it's perfect for our little bot.