typo

https://github.com/kuychaco/algoClass/blob/58517aad9a51cfe8fcb007467cadc9244a9e73c9/data-structures/queue.js#L153

**Queue_TwoStack should receive capacity argument and pass to new Stack, like below.**

function Queue_TwoStack (capacity) {
  this._stackIn = new Stack(capacity);
  this._stackOut = new Stack(capacity);
}