examples: add arcade example to servers (#399)

README.md

@@ -176,6 +176,16 @@ To use these examples with MCP clients that support the stdio transport (such as
         "--stdio"
       ]
     },
+    "arcade": {
+      "command": "npx",
+      "args": [
+        "-y",
+        "--silent",
+        "--registry=https://registry.npmjs.org/",
+        "@modelcontextprotocol/server-arcade",
+        "--stdio"
+      ]
+    },
     "budget-allocator": {
       "command": "npx",
       "args": [
@@ -393,6 +403,13 @@ Then configure your MCP client to build and run the local server. Replace `~/cod
         "cd ~/code/ext-apps/examples/basic-server-solid && npm run build >&2 && node dist/index.js --stdio"
       ]
     },
+    "arcade": {
+      "command": "bash",
+      "args": [
+        "-c",
+        "cd ~/code/ext-apps/examples/arcade-server && npm run build >&2 && node dist/index.js --stdio"
+      ]
+    },
     "budget-allocator": {
       "command": "bash",
       "args": [