Add nimble to marketplace

.claude-plugin/marketplace.json

@@ -1040,14 +1040,14 @@
       "homepage": "https://github.com/intercom/claude-plugin-external"
     },
     {
-      "name": "data-engineering",
-      "description": "Data engineering plugin - warehouse exploration, pipeline authoring, Airflow integration",
+      "name": "nimble",
+      "description": "Nimble web data toolkit — search, extract, map, crawl the web and work with structured data agents",
       "source": {
         "source": "url",
-        "url": "https://github.com/astronomer/agents.git",
-        "sha": "85d6053b1e21724f9cefb1e3f5219bd54fc77224"
+        "url": "https://github.com/Nimbleway/agent-skills.git",
+        "sha": "cf391e95bd8ac009e3641f172434a1d130dde7fe"
       },
-      "homepage": "https://github.com/astronomer/agents"
+      "homepage": "https://docs.nimbleway.com/integrations/agent-skills/plugin-installation"
     }
   ]
 }