Hayoo.pm - add 'haskell map' to triggers (Issue #800)

Hello, since it's a really minor fix on an already existent instant answer I thought I didn't need to include the template; let me know if I must include it anyway.

I have tested the change as specified in CONTRIBUTING.md.
Hey @MariagraziaAlastra @moollaza. My apologeies--I didn't word it very well. What I meant was to trigger on "haskell." So we would have:

```perl
triggers start => "hayoo", "haskell api", "haskell";
```