Fix small markdown error

Author: notsniped

README.md

@@ -2,8 +2,8 @@
 A simple user rating bot for Discord.
 
 # To-do
-[x] Publish the bot
-[ ] Completely add and implement user profile metadata (for custom banners and likewise)
-[ ] Redesign the README.md completely and make it look nice
+- [x] Publish the bot
+- [ ] Completely add and implement user profile metadata (for custom banners and likewise)
+- [ ] Redesign the README.md completely and make it look nice
 
 <h6>Want to contribute to development? Feel free to make an issue or a pull request :)</h6>