Add GC@3 results for Claude3 Opus (#4)

- Add GC@3 results for Claude3 Opus (e9a2c8fde9ee554d0431ee6a0d5ab7eb4c1522e6)


Co-authored-by: LELE CAO <[email protected]>

leaderboard/leaderboard.json

@@ -1,5 +1,28 @@
 {
     "models": [
+      {
+        "name": "Claude3-Opus",
+        "url": "https://www.anthropic.com/news/claude-3-family",
+        "scores": {
+          "Mean": 0.340,
+          "Exist": 0.382,
+          "Count": 0.348,
+          "Posi": 0.357,
+          "Col": 0.385,
+          "Post": 0.360,
+          "Cel": 0.317,
+          "Sce": 0.374,
+          "Lan": 0.344,
+          "Art": 0.385,
+          "Comm": 0.432,
+          "VisMean": 0.368,
+          "Code": 0.245,
+          "Num": 0.229,
+          "Tran": 0.236,
+          "OCR": 0.362,
+          "TextMean": 0.268
+        }
+      },
       {
         "name": "ChatGPT-4V",
         "url": "https://cdn.openai.com/papers/GPTV_System_Card.pdf",