projects/ad7405_fmc:Add VADJ info

Author: BCapota

projects/ad7405_fmc/README.md

@@ -3,6 +3,7 @@
 - Evaluation board product page: [EVAL-AD7405](https://www.analog.com/eval-ad7405)
 - System documentation: TO BE ADDED
 - HDL project documentation: https://analogdevicesinc.github.io/hdl/projects/ad7405_fmc/index.html
+- Evaluation board VADJ: 2.5V
 
 ## Supported parts
 

projects/ad7405_fmc/zed/README.md

@@ -1,4 +1,8 @@
-# AD7405-FMC/ZED HDL Project
+<!-- no_build_example, no_dts, no_no_os -->
+
+# AD7405-FMC/ZED HDL
+
+- VADJ with which it was tested in hardware: 2.5V
 
 ## Building the project