Merge pull request #158 from Carifio24/find-merge-class-size-15

Use 15 instead of 12 as the cutoff size when looking for a merge class

src/stories/hubbles_law/database.ts

@@ -781,7 +781,7 @@ export async function findClassForMerge(database: Sequelize, classID: number): P
     		INNER JOIN
     		(
     			SELECT * FROM StudentsClasses GROUP BY class_id
-    			HAVING COUNT(student_id) >= 12
+    			HAVING COUNT(student_id) >= 15
     		) C
     		ON Classes.id = C.class_id
     WHERE id != ${classID}