update docs

Author: ArthurFlag

docs/generator/reference/docker_mcp_gateway_run.yaml

@@ -66,6 +66,16 @@ options:
       experimentalcli: false
       kubernetes: false
       swarm: false
+    - option: central
+      value_type: bool
+      default_value: "false"
+      description: In central mode, clients tell us which servers to enable
+      deprecated: false
+      hidden: true
+      experimental: false
+      experimentalcli: false
+      kubernetes: false
+      swarm: false
     - option: config
       value_type: stringSlice
       default_value: '[config.yaml]'