message: action: improve goto docs, specify yaw frame
diff: @@ -138,16 +138,15 @@ public:
  Result return_to_launch() const;
  /**
  - * @brief Send command to reposition the vehicle to a specific position.
  + * @brief Send command to move the vehicle to a specific global position.
  *
  - * The latitude and longitude is given in degrees in WGS84 and the altitude
  + * The latitude and longitude are given in degrees (WGS84 frame) and the altitude
  * in meters AMSL (above mean sea level).
  *
  - * This sends the vehicle to a specified lattitude/longitude/altitude coordinates.
  - * @param latitude_deg Latitude in degrees
  - * @param longitude_deg Longitude in degrees
  - * @param altitude_amsl_m Altitude AMSL in meters
  - * @param yaw_deg Yaw angle in degrees
  + * @param latitude_deg Latitude in degrees.
  + * @param longitude_deg Longitude in degrees.
  + * @param altitude_amsl_m Altitude AMSL in meters.
  + * @param yaw_deg Yaw angle in degrees (Frame is NED, 0 is North, positive is clockwise).
  *
  * @return Result of request.
  */
  