add link to night builds

[MasterLogick]

Hi!
I have written github action to publish night releases of shared and static libs every week. Here I want to add link in readme page

[SpartanJ]

This is really nice. I would like to know a couple of things:

1. Nightly builds are only created if there are only new commits?
2. I think it would be more useful if this script is moved into this repo, would you be OK with that?

Thank you!

[MasterLogick]

1. No, every week regardless if there are new commits.
2. Yes, of course. But I have created a separate repo to not overflow the releases page of your repo.