Add user guide for arducam camera on pico 2040 platform

README.md

@@ -51,12 +51,15 @@ cd build
 ```bash 
 cmake ..
 ```
+![IMAGE ALT TEXT](data/1.png)
 ```bash
 make
 ```
+![IMAGE ALT TEXT](data/2.png)
 Then you will creat some files under RPI-Pico-Cam/build/Arducam path 
 [arducam_demo.elf](arducam_demo) | which is used by the debugger.
 [arducam_demo.uf2](arducam_demo) | which can be dragged onto the RP2040 USB Mass Storage Device.
+![IMAGE ALT TEXT](data/3.png)
 
 ### Test Arducam demo 
 
@@ -71,7 +74,7 @@ The simplest method to load software onto a RP2040-based board is by mounting it
 Doing this allows you to drag a file onto the board to program the flash. Go ahead and connect the Raspberry Pi Pico to
 your Raspberry Pi using a micro-USB cable, making sure that you hold down the BOOTSEL button to force it into
 USB Mass Storage Mode.
-
+![IMAGE ALT TEXT](data/4.png)
 If you are logged in via ssh for example, you may have to mount the mass storage device manually:
 ```bash
 $ dmesg | tail