Improve documentation for auto declaration from overrides (#1751)
Improve documentation for auto declaration from overrides (#1751)

* Improve documentation for auto declaration from overrides.

Signed-off-by: voodoo <7c06c5c94767c6b1c69a5963b7437b61758081a8@gmail.com>

* Fix spelling.

Signed-off-by: voodoo <7c06c5c94767c6b1c69a5963b7437b61758081a8@gmail.com>

* Extend description.

Signed-off-by: voodoo <7c06c5c94767c6b1c69a5963b7437b61758081a8@gmail.com>
ros2/rclcpp,ros2/rclcpp