Integrate minigame and courses

Assets/Courses/Scripts/CourseIndex.cs

@@ -2,8 +2,8 @@ using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 
-public static class CourseIndex
+// TODO: add other courses
+public enum CourseIndex
 {
-    // Start is called before the first frame update
-    public static int index = 0;
+    FINGERSPELLING
 }