message: params_raw: small docs fix
diff: @@ -22,7 +22,7 @@ public:
  * The plugin is typically created as shown below:
  *
  * ```cpp
  - * auto info = std::make_shared<ParamsRaw>(system);
  + * auto params_raw = std::make_shared<ParamsRaw>(system);
  * ```
  *
  * @param system The specific system associated with this plugin.
  