Incorrect example code on main page

[prostynick]

The code on main page in "Synopsis" section is incorrect. There's no "index: 1" defined, so the code doesn't work.

[dperel]

I found that the line below from that example was not setting the word variable in the ternary statement.
return word.indexOf(term) === 0 ? word : null;
It needs to be
word = word.indexOf(term) === 0 ? word : null;
in order for it to work properly.

Minor issue aside this is a great library. Thanks!