For clarity, update the expect statement in AboutApplyingWhatWeHaveLeart.js

[jazeee]

In the file, AboutApplyingWhatWeHaveLeart.js
The following line:
expect(233168).toBe(FILL_ME_IN);

should be
expect(sum).toBe(233168);

There is nothing to fill in on this line. (I saw someone fill in with 233168, which is not the point!)