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 Mode
IDs can be obtained by right-clicking server icons, roles, etc. and copying the ID.
Obtained under the bot tab in the discord developer panel.
Obtained under the general information tab in the discord developer panel.
ID of the dicord server where this bot is added.
What port to run the web server under.
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.
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.