Hi Hrishikesh. This article is good. However, there are some changes you must make:

1. Add images of the connections. There are different names on the silkscreen and the portenta board. This can be problematic for new users. There are images for them available on the internet.
2. Add the script for reading healthy board PMIC registers. This will be helpful. I2C connections are straightforward.
3. Please include a section on re-flashing boot loader as well. I know you might have not encountered it but many people do and it can be helpful.