Add note to report top-5 with lowest ids

src/main/scala/recommend/Recommender.scala

@@ -61,12 +61,17 @@ object Recommender extends App {
         // Limiting the scope of implicit formats with {}
         implicit val formats = org.json4s.DefaultFormats
         val answers: Map[String, Any] = Map(
+
+            // IMPORTANT: To break ties and ensure reproducibility of results,
+            // please report the top-5 recommendations that have the smallest
+            // movie identifier.
+
             "Q4.1.1" -> List[Any](
               List(254, "Batman & Robin (1997)", 5.0), // Datatypes for answer: Int, String, Double
               List(338, "Bean (1997)", 5.0),
-              List(587, "Hour of the Pig", 5.0),
               List(615, "39 Steps", 5.0),
-              List(741, "Last Supper", 5.0)
+              List(741, "Last Supper", 5.0),
+              List(587, "Hour of the Pig", 5.0)
             )
          )
         json = Serialization.writePretty(answers)