Wrong cards summary

[jaydson]

All cards are assuming a single summary:

Among so many great new features in ES6, Arrow Functions(or Fat Arrow Functions) is one that desirves attention! It is not just awesome, it's also great to work with scopes, shortcuts some tecniques ...

//cc @robsongajunior

[robsongajunior]

Sorry, all cards was written a fixed summary.

This correction can be found at [*] update - All cards are assuming a single summary bugfix

PullRequest https://github.com/es6rocks/harmonic-theme-jsrocks/pull/6

[jaydson]

fixed by #6