Add short description for gowin {read_status/read_user/reload}
commands.
Change-Id: Ib441f3a2c0f00346decdeb505c27afa2630e9b5d
Signed-off-by: Daniel Anselmi <danselmi@gmx.ch>
Reviewed-on: https://review.openocd.org/c/openocd/+/7736
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
Tested-by: jenkins