Add split-second-stopwatch exercise #2968 #2977

main config.json updated to reorder new practice exercise.

Author: EmmanuelBerkowicz

config.json

@@ -842,6 +842,17 @@
         ],
         "difficulty": 4
       },
+      {
+        "slug": "split-second-stopwatch",
+        "name": "Split-Second Stopwatch",
+        "uuid": "9510c0ae-9977-4260-8991-0e8e849094b0",
+        "practices": [],
+        "prerequisites": [
+          "exceptions",
+          "if-else-statements"
+        ],
+        "difficulty": 4
+      },
       {
         "slug": "sum-of-multiples",
         "name": "Sum of Multiples",
@@ -1889,17 +1900,6 @@
           "lists"
         ],
         "difficulty": 10
-      },
-      {
-        "slug": "split-second-stopwatch",
-        "name": "Split-Second Stopwatch",
-        "uuid": "9510c0ae-9977-4260-8991-0e8e849094b0",
-        "practices": [],
-        "prerequisites": [
-          "exceptions",
-          "if-else-statements"
-        ],
-        "difficulty": 4
       }
     ],
     "foregone": [