Missing paper

[fredefox]

The paper referenced here is a dead link.

[noughtmare]

Here's a working link: https://github.com/beerendlauwers/haskell-papers-ereader/blob/05c3bc023072a6fc5b1a09e11b5f59298fa8cc2b/papers/Practical%20Principled%20FRP%20-%20Forget%20the%20past%2C%20change%20the%20future%2C%20FRPNow!.pdf

[JonathanILevi]

Can the link be fixed?

[fredefox]

#27