update package.json to be consistent with js1 week1 coursework

Author: Dedekind561

package.json

@@ -4,8 +4,23 @@
   "description": "Exercises for JS1 Week 2",
   "license": "CC-BY-SA-4.0",
   "scripts": {
-    "test": "jest --testRegex='mandatory[/\\\\].*\\.js$' --testPathIgnorePatterns=playing-computer",
-    "extra-tests": "jest --testRegex='extra[/\\\\].*\\.js$'"
+    "test": "jest"
+  },
+    "jest": {
+    "projects": [
+      {
+        "displayName": "mandatory",
+        "testMatch": [
+          "<rootDir>/mandatory/*.js"
+        ]
+      },
+      {
+        "displayName": "extra",
+        "testMatch": [
+          "<rootDir>/extra/*.js"
+        ]
+      }
+    ]
   },
   "repository": {
     "type": "git",