ReadMe Demo page doesn't exist

[JueK3y-Prv]

The page https://wagerfield.github.com/flat-surface-shader/ doesn't seem to exist.
GitHub shows an 404 error.

[JueK3y-Prv]

Update:
Looks like this is just the wrong link.
Please update the ReadMe with the http://matthew.wagerfield.com/flat-surface-shader/ link