This is how you make a permanent Link to your Discord User in any markdown file you want (as seen above)!
[![My Discord (YOURUSERID)](https://img.shields.io/badge/My-Discord-%235865F2.svg)](https://discord.com/users/YOURUSERID)
Explanation: a image link to a static shields.io badge with the "My Discord" description wrapped into a link to a discord url that opens your user in the app