config.json in trackler-2.2.1.16

- old
+ new

@@ -1,7 +1,9 @@
 {
   "language": "Haskell",
   "active": true,
+  "solution_pattern": "example.*[.]hs",
+  "ignore_pattern": "example",
   "exercises": [
     {
       "uuid": "c97d9dda-c7ee-4595-b447-693559d03ba5",
       "slug": "hello-world",
       "core": false,