Add <#> to "Differences from Haskell" page

[GCrispino]

I recently realized that Haskell's <&> operator is not present in Purescript as is. The equivalent is <#> or the mapFlipped function.

Should this be in the Where is ... from Haskell? section from the "Differences from Haskell" guide?

If so, I'd happily create a PR changing this.

[JordanMartinez]

Most likely.

[GCrispino]

Thanks for replying @JordanMartinez! I'll wait for the opinion of a maintainer.

[GCrispino]

Since no mantainer answered, I took the liberty of opening a PR (#285). Feel free to comment here or there. Kudos!

[hdgarrood]

Resolved by #285