reformat nth-prime config.json

config.json

@@ -404,9 +404,9 @@
         "slug": "nth-prime",
         "name": "Nth Prime",
         "uuid": "b904e358-d446-41b2-a168-0be20a4c9df8",
+        "practices": [],
         "prerequisites": [],
-        "difficulty": 4,
-        "practices": []
+        "difficulty": 4
       },
       {
         "slug": "robot-simulator",

exercises/practice/nth-prime/.meta/config.json

@@ -1,12 +1,19 @@
 {
-  "blurb": "Given a number n, determine what the nth prime is.",
-  "authors": ["keiravillekode"],
-  "contributors": [],
+  "authors": [
+    "keiravillekode"
+  ],
   "files": {
-    "solution": ["nth-prime.wren"],
-    "test": ["nth-prime.spec.wren"],
-    "example": [".meta/proof.ci.wren"]
+    "solution": [
+      "nth-prime.wren"
+    ],
+    "test": [
+      "nth-prime.spec.wren"
+    ],
+    "example": [
+      ".meta/proof.ci.wren"
+    ]
   },
+  "blurb": "Given a number n, determine what the nth prime is.",
   "source": "A variation on Problem 7 at Project Euler",
   "source_url": "https://projecteuler.net/problem=7"
 }