Update tool_config.json

tool_config.json

@@ -1,7 +1,5 @@
 {
-  "h_f_model_downloads": {
     "description": "This is a tool that returns the most downloaded model of a given task on the Hugging Face Hub. It takes the name of the category (such as text-classification, depth-estimation, etc), and returns the name of the checkpoint alongside its 30-day download numbers.",
-    "name": "",
-    "tool_class": "__main__.HFModelDownloadsTool"
-  }
+    "name": "model-download-counter",
+    "tool_class": "model_downloads.HFModelDownloadsTool"
 }