Add railway to marketplace

.claude-plugin/marketplace.json

@@ -686,15 +686,17 @@
       "homepage": "https://github.com/semgrep/mcp-marketplace.git"
     },
     {
-      "name": "mintlify",
-      "description": "Build beautiful documentation sites with Mintlify. Convert non-markdown files into properly formatted MDX pages, add and modify content with correct component use, and automate documentation updates.",
-      "category": "development",
+      "name": "railway",
+      "description": "Deploy and manage apps, databases, and infrastructure on Railway. Covers project setup, deploys, environment configuration, networking, troubleshooting, and monitoring.",
+      "category": "deployment",
       "source": {
-        "source": "url",
-        "url": "https://github.com/mintlify/mintlify-claude-plugin.git",
-        "sha": "ce435be18a700dc849d6a63a80da4816d1e2128c"
+        "source": "git-subdir",
+        "url": "railwayapp/railway-skills",
+        "path": "plugins/railway",
+        "ref": "main",
+        "sha": "d52f3741a6a33a3191d6138eb3d6c3355cb970d1"
       },
-      "homepage": "https://www.mintlify.com/"
+      "homepage": "https://docs.railway.com/ai/claude-code-plugin"
     }
   ]
 }