fix: add installation instructions for claude-code mcp (#1236)

apps/docs/getting-started/quick-start/installation.mdx

@@ -30,6 +30,19 @@ cursor://anysphere.cursor-deeplink/mcp/install?name=taskmaster-ai&config=eyJjb21
 ```
 
 > **Note:** After clicking the link, you'll still need to add your API keys to the configuration. The link installs the MCP server with placeholder keys that you'll need to replace with your actual API keys.
+
+### Claude Code Quick Install
+
+For Claude Code users:
+
+```bash
+claude mcp add taskmaster-ai -- npx -y task-master-ai
+```
+
+Don't forget to add your API keys to the configuration:
+- in the root .env of your Project
+- in the "env" section of your mcp config for taskmaster-ai
+
 </Accordion>
 ## Installation Options