boards: arduino: uno_r4: Update document about Arduino UNO R4 WiFi

Update documents about adding Arduino UNO R4 WiFi.
Adding a description that a debug adapter is required when
flashing and debugging.

Signed-off-by: TOKITA Hiroshi <tokita.hiroshi@gmail.com>

boards/arduino/uno_r4/doc/index.rst

@@ -1,21 +1,58 @@
 .. _arduino_uno_r4:
 
-Arduino UNO R4 Minima
+Arduino UNO R4
-#####################
+##############
 
 Overview
 ********
 
-The Arduino UNO R4 Minima is a development board featuring the Renesas RA4M1 SoC
+The Arduino UNO R4 Minima/WiFi is a development board featuring the Renesas RA4M1 SoC
 in the Arduino form factor and is compatible with traditional Arduino.
 
+Hardware
+********
+
+- Renesas RA4MA1 Processor (ARM Cortex-M4 at 48 MHz)
+- 256 KiB flash memory and 32 KiB of RAM
+- One user LEDs
+- One reset button
+- One WiFi Transceiver (Arduino UNO R4 WiFi only)
+- One 12x8 LED Matrix (Arduino UNO R4 WiFi only)
+- Built-in CMSIS-DAP debug adapter (Arduino UNO R4 WiFi only)
+
+Supported Features
+==================
+
+The Arduino UNO R4 Minima/Wifi  board configuration supports the following
+hardware features:
+
++-----------+------------+------------------------------------------+
+| Interface | Controller | Driver/Component                         |
++===========+============+==========================================+
+| GPIO      | on-chip    | I/O ports                                |
++-----------+------------+------------------------------------------+
+| UART      | on-chip    | Serial ports                             |
++-----------+------------+------------------------------------------+
+
 Programming and debugging
 *************************
 
+Debug adapter
+=============
+
+A debug adapter is required to flash and debug programs.
+Arduino UNO R4 WiFi has a built-in debug adapter that
+you can use for flashing and debugging.
+
+In the Arduino UNO R4 Minima case, You need to prepare
+debug adapter separately. A 5V-compatible CMSIS-DAP adapter
+adapts to this board.
+
+
 Building & Flashing
 ===================
 
-You can build and flash an application in the usual way (See
+You can build and flash with ``west flash`` command (See
 :ref:`build_an_application` and
 :ref:`application_run` for more details).
 
@@ -26,10 +63,15 @@ Here is an example for building and flashing the :zephyr:code-sample:`blinky` ap
    :board: arduino_uno_r4_minima
    :goals: build flash
 
+.. zephyr-app-commands::
+   :zephyr-app: samples/basic/blinky
+   :board: arduino_uno_r4_wifi
+   :goals: build flash
+
 Debugging
 =========
 
-Debugging also can be done in the usual way.
+Debugging can be done with ``west debug`` command.
 The following command is debugging the :zephyr:code-sample:`blinky` application.
 Also, see the instructions specific to the debug server that you use.
 
@@ -39,6 +81,12 @@ Also, see the instructions specific to the debug server that you use.
    :maybe-skip-config:
    :goals: debug
 
+.. zephyr-app-commands::
+   :zephyr-app: samples/basic/blinky
+   :board: arduino_uno_r4_wifi
+   :maybe-skip-config:
+   :goals: debug
+
 
 Using pyOCD
 -----------
@@ -62,3 +110,8 @@ If you corrupt the Arduino bootloader, you can restore it with the following com
 
    wget https://raw.githubusercontent.com/arduino/ArduinoCore-renesas/main/bootloaders/UNO_R4/dfu_minima.hex
    pyocd flash -e sector -a 0x0 -t r7fa4m1ab dfu_minima.hex
+
+.. code-block:: console
+
+   wget https://raw.githubusercontent.com/arduino/ArduinoCore-renesas/main/bootloaders/UNO_R4/dfu_wifi.hex
+   pyocd flash -e sector -a 0x0 -t r7fa4m1ab dfu_wifi.hex