feat: add the cursor plugin

Also fix remaining typos in the claude plugin description and keywords.

Author: art049

.claude-plugin/plugin.json

@@ -1,11 +1,11 @@
 {
   "name": "CodSpeed",
-  "description": "CodSpeed plugin for Claude Code helping with performance measurement and optimizaiton.",
+  "description": "CodSpeed plugin for Claude Code helping with performance measurement and optimization.",
   "version": "1.0.0",
   "author": {
     "name": "CodSpeed"
   },
-  "keywords": ["codspeed", "performace", "profiling", "optimization", "benchmarking"],
+  "keywords": ["codspeed", "performance", "profiling", "optimization", "benchmarking"],
   "homepage": "https://codspeed.io",
   "repository": "https://github.com/CodSpeedHQ/codspeed",
   "license": "MIT",

.cursor-plugin/marketplace.json

@@ -0,0 +1,13 @@
+{
+  "name": "codspeed-plugin-marketplace",
+  "owner": {
+    "name": "CodSpeed"
+  },
+  "plugins": [
+    {
+      "name": "codspeed",
+      "source": "./",
+      "description": "Tools for accurate and reliable performance measurement and optimization"
+    }
+  ]
+}

.cursor-plugin/plugin.json

@@ -0,0 +1,18 @@
+{
+  "name": "CodSpeed",
+  "description": "CodSpeed plugin for Cursor helping with performance measurement and optimization.",
+  "version": "1.0.0",
+  "author": {
+    "name": "CodSpeed"
+  },
+  "keywords": ["codspeed", "performance", "profiling", "optimization", "benchmarking"],
+  "homepage": "https://codspeed.io",
+  "repository": "https://github.com/CodSpeedHQ/codspeed",
+  "license": "MIT",
+  "mcpServers": {
+    "CodSpeed": {
+      "type": "http",
+      "url": "https://mcp.codspeed.io/mcp"
+    }
+  }
+}