Mark discord as done in topics-todo

Author: MattIPv4

topics-todo.md

@@ -24,7 +24,6 @@ Information included in this repository will appear on each topic's respective p
 - [ ] [data](https://github.com/topics/data/)
 - [ ] [demo](https://github.com/topics/demo/)
 - [ ] [devops](https://github.com/topics/devops/)
-- [ ] [discord](https://github.com/topics/discord/)
 - [ ] [docker-compose](https://github.com/topics/docker-compose/)
 - [ ] [docker-image](https://github.com/topics/docker-image/)
 - [ ] [dockerfile](https://github.com/topics/dockerfile/)
@@ -76,6 +75,7 @@ Information included in this repository will appear on each topic's respective p
 - [x] [compiler](https://github.com/topics/compiler/)
 - [x] [composer](https://github.com/topics/composer/)
 - [x] [computer-vision](https://github.com/topics/computer-vision/)
+- [x] [discord](https://github.com/topics/discord/)
 - [x] [dot-net](https://github.com/topics/dot-net/)
 - [x] [ethereum](https://github.com/topics/ethereum/)
 - [x] [image-processing](https://github.com/topics/image-processing/)