Update README.md

Author: kentcdodds

README.md

@@ -169,7 +169,7 @@ DANGEROUSLY_OMIT_AUTH=true npm start
 You can also set the token via the `MCP_PROXY_AUTH_TOKEN` environment variable when starting the server:
 
 ```bash
-MCP_PROXY_AUTH_TOKEN=$(openssl rand -hex 32) npm start
+MCP_PROXY_TOKEN=$(openssl rand -hex 32) npm start
 ```
 
 #### Local-only Binding