Merge pull request #70 from ganeshpatelQB/main

Add OSQB model

Author: liamdugan

leaderboard/submissions/QuillBot/metadata.json

@@ -0,0 +1,6 @@
+{
+    "date_released": "2025-01-30",
+    "detector_name": "QuillBot",
+    "website": "https://quillbot.com/ai-content-detector",
+    "contact_info": "ganesh.patel@quillbot.com"
+}