- Switch board image directive from .. image:: to .. figure:: with
:scale: 50 % and a caption line, matching the format used by other
Ameba board docs (rtl8721dx, rtl8721f).
- Move rtl8730e_evb.png from img/ subdirectory to the same level as
index.rst, consistent with other boards.
- Add gpio configuration section describing the three registered pins
(PB19 output /dev/gpio0, PB20 input /dev/gpio1, PB11 interrupt
/dev/gpio2), usage examples and pin encoding notes.
- Add GPIO to the "Supported in this NuttX port" feature list.
Signed-off-by: dechao_gong <dechao_gong@realsil.com.cn>
Assisted-by: Claude <noreply@anthropic.com>