Add QuickSort

[jovianjaison]

The repository currently does not have a JS implementation of Quick Sort. I would like to work on it if possible. 😄

[Rhuancpq]

Working on it

[souraexx]

Working on it. Can you assign me?

[pzmudzinski]

@souraexx @Rhuancpq, author of the issue declared he wanted to work on it, and you just rushed to get easy PR? ;)

[souraexx]

Didn't notice that, thanks for pointing out.

[Rhuancpq]

I didn't notice that too, can I open an issue to bring quick sort with median of 3 ?

[akshitagupta15june]

is anyone working on this?