README.md link not working

[DamiGbs]

Description
The How we work, who we are, what we use, what we build link doesn't work and leads to a 404error site

To Reproduce
Steps to reproduce the behavior:

1. Go to README.md
2. Click on 'How we work, who we are, what we use, what we build'
3. 404 Page appears

Expected behavior
A working link

Additional context
Faulty link:
https://www.hlx.live/docs/manifesto