Update README.md

Fix check TODO

README.md

@@ -200,10 +200,10 @@ For each image, the color `#aaa` was transformed to `#fff` so that Flipper Zero
 
 
 ## TODO
-[ ] Refactor the code
-[ ] The OK button stops working when exiting the app, so it needs to be restarted 🤔
-[ ] Set each Pokemon's characteristics, attacks, and default levels
-[ ] Improve animations
+- [ ] Refactor the code
+- [ ] The OK button stops working when exiting the app, so it needs to be restarted 🤔
+- [ ] Set each Pokemon's characteristics, attacks, and default levels
+- [ ] Improve animations
 
 ## Links