Some solutions for the julia path

julia/difference-of-squares/.exercism/config.json

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+{
+  "authors": [
+    "SaschaMann"
+  ],
+  "contributors": [
+    "bovine3dom",
+    "cmcaine"
+  ],
+  "files": {
+    "solution": [
+      "difference-of-squares.jl"
+    ],
+    "test": [
+      "runtests.jl"
+    ],
+    "example": [
+      ".meta/example.jl"
+    ]
+  },
+  "blurb": "Find the difference between the square of the sum and the sum of the squares of the first N natural numbers.",
+  "source": "Problem 6 at Project Euler",
+  "source_url": "https://projecteuler.net/problem=6"
+}

julia/difference-of-squares/.exercism/metadata.json

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+{"track":"julia","exercise":"difference-of-squares","id":"43726f141cb245cbb9d9c8b9cbdc4dc7","url":"https://exercism.org/tracks/julia/exercises/difference-of-squares","handle":"Kimawari","is_requester":true,"auto_approve":false}