message: reactor: fix documentation
diff: @@ -323,24 +323,23 @@ namespace elle
  | Every |
  `------*/
  - /** Run an operation at a given frequency.
  - *
  - * Run the \param op operation every \param freq. For now, the
  - * implementation simply sleeps for \param freq between every action thus
  - * inducing a drift. This is suitable for actions that need to be run
  - * in background roughly regularly such as garbage collecting,
  - * notification checking, ... It is not suitable if the frequency must be
  - * exactly met on the long term.
  - *
  - * The thread that run the operation is returned, enabling the caller to
  - * stop it at will.
  - *
  - * \param op The operation to run.
  - * \param name The name of the thread that will run the operation.
  - * \param freq The frequency at which to run the operation.
  - * \param freq Whether to delete the thread when it's done.
  - * \return The thread running the operation.
  - */
  + /// Run an operation at a given frequency.
  + ///
  + /// Run the @param op operation every @param freq. For now, the
  + /// implementation simply sleeps for @param freq between every action thus
  + /// inducing a drift. This is suitable for actions that need to be run
  + /// in background roughly regularly such as garbage collecting,
  + /// notification checking, ... It is not suitable if the frequency must be
  + /// exactly met on the long term.
  + ///
  + /// The thread that run the operation is returned, enabling the caller to
  + /// stop it at will.
  + ///
  + /// @param freq The frequency at which to run the operation.
  + /// @param name The name of the thread that will run the operation.
  + /// @param op The operation to run.
  + /// @param dispose Whether to delete the thread when it's done.
  + /// @return The thread running the operation.
  Thread::unique_ptr
  every(Duration freq,
  const std::string& name,
  