Update README.md

Author: ComplexRobot

README.md

@@ -11,4 +11,6 @@ All possible 75602251018 ingredient combinations were filtered into the shortest
 
 Then, a secondary program sorts and filters the results which are saved as data to JSON files with a specific filename format.
 
+The GUI does not generate anything, it simply accesses the JSON files previously generated by the C++ programs.
+
 The C++ source code is not publicly available.