Incorrect URL in documentation on website

[nktice]

I would like to note there's errors on the website documentation :
https://www.waveshare.com/wiki/2.13inch_e-Paper_HAT_Manual#Overview
Refers to other URLs for this repo, thus causing issues.
If you could please fix the company website and change URL to here
that would likely help people using your products, and boost your business.
I've written to them using website's contact form but have not heard back.
It is a bad sign the company won't respond and their docs are wrong.