ad77681: Add VADJ values in README

Signed-off-by: Stanca Pop <stanca.pop@analog.com>

Author: StancaPop

projects/ad77681evb/README.md

@@ -5,6 +5,7 @@
   - [EVAL-ADAQ7768-1](https://www.analog.com/eval-adaq7768-1)
 - System documentation: https://wiki.analog.com/resources/eval/user-guides/ad7768-1
 - HDL project documentation: https://analogdevicesinc.github.io/hdl/projects/ad77681evb/index.html
+- Evaluation board VADJ range: 1.2V - 3.3V
 
 ## Supported parts
 
@@ -15,4 +16,4 @@
 
 ## Building the project
 
-Please enter the folder for the FPGA carrier you want to use and read the README.md.
+Please enter the folder for the FPGA carrier you want to use and read the README.md.

projects/ad77681evb/zed/README.md

@@ -1,10 +1,14 @@
+<!-- no_build_example, no_no_os -->
+
 # AD7768-1-EVB/ZED HDL Project
 
+- VADJ with which it was tested in hardware: 2.5V
+
 ## Building the project
 
 ```
 cd projects/ad77681evb/zed
 make
 ```
 
-Corresponding device tree: [zynq-zed-adv7511-ad7768-1-evb.dts](https://github.com/analogdevicesinc/linux/blob/main/arch/arm/boot/dts/xilinx/zynq-zed-adv7511-ad7768-1-evb.dts)
+Corresponding device tree: [zynq-zed-adv7511-ad7768-1-evb.dts](https://github.com/analogdevicesinc/linux/blob/main/arch/arm/boot/dts/xilinx/zynq-zed-adv7511-ad7768-1-evb.dts)