update README

Author: haarg

README.md

@@ -16,8 +16,7 @@ system documentation is available on this site, including playbooks for emergenc
 This site is automatically built when changes are
 merged to the `master` branch on [GitHub](https://github.com/metacpan/network-infrastructure).
 
-Until we set up our own domain, this site can be found at
-[https://inquisitive-yeot-0bf7d4.netlify.app/](https://inquisitive-yeot-0bf7d4.netlify.app/)
+Viewable on [https://metacpan.github.io/network-infrastructure/](https://metacpan.github.io/network-infrastructure/).
 
 ### Running locally