This updates the documentation of all the WeAct boards
to use the new `zephyr:board::` directive.
Signed-off-by: Benjamin Cabé <benjamin@zephyrproject.org>
The WeAct STM32F405 Core Board is an extremely low cost and bare-bones
development board featuring the STM32F405RG, 64-pin variant of
the STM32F405x series.
Signed-off-by: Pavlo Yadvychuk <pyadvichuk@gmail.com>