Updated dead link

[makew0rld]

No description provided.

[maxcountryman]

Thanks!

[davidism]

@maxcountryman pr #444 discussed this too

That particular snippet is ok, I think. But the quality, up-to-date-ness, and long term helpfulness of the snippet repository overall was not good, and there had been a giant warning on it for years.

I'd much rather see that snippet brought into Flask-Login, either in code or in docs, rather than keeping that site alive by linking to the archive.

[maxcountryman]

@davidism hm maybe we should remove it instead.

[davidism]

I think adding the snippet to the docs is fine. It might even be useful to add as a function so we can test and improve it.

[makew0rld]

I agree, I was just making a quick fix. Adding it to the docs or even better, the lib itself, would be great to see.