DiscordTells is a plugin to alert you when you receive an in-game direct message (a tell) by sending the message to a Discord server channel with an optional screenshot and ping.
You will need your own discord server for this to work, or at least one you have admin access to.
The main settings in this plugin is your Discord user Id and the Webhook Url
This is shamelessly ripped from Intro to Webhooks
Once again, shamelessly ripped from Where can I find my User/Server/Message ID
MAKE SURE YOU HAVE DEVELOPER MODE ENABLED
You'll find Developer Mode in User Settings > Advanced.
Now go to a DM or server you've talked in recently and right click on your name from one of your messages and you will see an option for Copy ID Click that and then paste it in the UserId setting field.