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.
@MariagraziaAlastra apologies, I didn't realize this was a fix for #912. Unfortunately, this doesn't really fix the problem. In the case of "hayoo map" the intended result is a search for the "map" function using the Hackage API. With the trigger phrase being "haskell map", "map" is considered part of the trigger phrase which means that the remainder of the query will be what the user is searching for on the Hackage API.

#912 isn't worded very well, but the real issue is that for the query "haskell map", we should be seeing a result from the Hackage instant answer (if you look in your dev console, you'll see we get a JSON response with the correct data) so it's already triggering properly, but unfortunately our Map instant answer is taking precedence because the Hackage result isn't appearing in the AnswerBar (there should be a tab containing the result)

Off the top of my head I would imagine its a relevancy issue and so Hackage is throwing away the result (in which case there isn't really a problem to fix) but if not then there is a bug preventing the Hackage result from displaying.

Does that make sense?