Simplify boolean logic

[oliverjam]

You can generally eliminate a lot of if/else boilerplate by leveraging the fact that the strict equality comparison (===) will return a boolean.

E.g. you could replace this:

b-b/src/components/questionContainer/index.js

Lines 11 to 15 in e6b0f97

	if (answer === correct_answer) {
	setCorrect(true);
	} else {
	setCorrect(false);
	}

with just

setCorrect(answer === correct_answer);

[sofiapoh]

Similarly to Oli, I noticed you were using a string "correct" as the initial value for your state:
https://github.com/FAC-Sixteen/b-b/blob/master/src/components/questionContainer/index.js#L9
When the type of the state is always going to be a boolean, it's a good idea to initialise it to a boolean too :) In this case false would had been a good initial state.