Readme needs more work
Maybe address what, why, how?

Your code would be easier to read if you added comments to explain what is happening.

Looking good otherwise, great work

Maybe think about using an instantly invoked function expression to avoid the global variables in your index.js file?

Also, we are wondering why you don't use your variables more - e.g. you declare var wordForm = document.getElementById('word-form'); at the top, but then you still use document.getElementById('word-form') instead of the variable wordForm at lines 17, 31, 61 and 72...

Seems like you could cut down your code quite a bit by using the variables more instead of getElementById'ing it?

In index.js maybe refactor line 23 to be

chooseMessage = (nextHint[0] === 'A') ? 'Choose an ' : 'Choose a ';

instead of

(nextHint[0] === 'A') ? chooseMessage = 'Choose an ' : chooseMessage = 'Choose a ';

and I think there should be a similar change on line 117

Only relevant for dev purposes, but might be helpful :)

When madlibs asks for a plural, that means you can't use the autocomplete to select your word. Is there any way you could automatically turn the word into its plural? Or maybe just hide autocomplete for plural words? Orrrrrr prompt the user to make the word plural if they autoselect it (instead of automatically submitting the word on click)...

Is this code doing what it's supposed to do? Looks a bit suspect. If that is how it's meant to work, I'd love to know how it's getting the hit count : S

[![HitCount](https://hitt.herokuapp.com/{username||org}/nodelibs.svg)](https://github.com/vanillasquad/nodelibs)

Would be cool to be able to select words with up/down arrow keys :)

Not really a fan of
hidden-wildwood-59018.herokuapp.com