A spammer has registered "replace-this-with-your-hugo-site.com"

[wxs]

An enterprising scammer has registered replace-this-with-your-hugo-site.com (don't bother trying it, popups, beeping, probably exploits), which I accidentally discovered after deploying a misconfigured website and leading some customers to this very problematic place.

I suggest that if you try to build a site that uses `{{< ref`` anywhere, for which this has not been properly configured that there is some sort of error.

However, if that's too much, at least replacing it with something like replace-this-with-your-hugo-site.example.com will at least protect against this spammer.

[moorereason]

Pushed to v0.17.docs branch as aae642e.

[anthonyfok]

See also #2264 (July 2016) which fixed the Hugo docs but not the code for hugo new site etc.

In August/September 2016, @MarkDBlackwell unknowingly reverted #2264 partially in commit 696c67b.