update readme and todo

Author: PatatoBit

README.md

@@ -23,6 +23,8 @@ npm run start
 
 To start your application:
 
+**Remember to replace the `ENV` in Dockerfile
+
 ```
 docker-compose up -d
 ```

TODO.md

@@ -0,0 +1,4 @@
+- [ ] Name is shared on process
+  - [ ] Store `uid: realname`   
+  - [ ] Query when button is pressed
+  - [ ] Send realname + class to channel