added meal swipe function

Author: ClemsonJames

README.md

@@ -21,6 +21,6 @@ creating a check in system for CUhackitEvents
   - Verify the length of the uid string before converting to int
 - [ ] Fix the add function for terminal version
   - The older version of add should work 
-- [ ] Format code in GUI version (Optional)
-  - Magic numbers, duplicate codes, and etc
+- [ ] Format code in GUI version
+  - hard to read
 - [ ] Zoom not working for Linux