add front-end streams blog entry

![weeeee](http://24.media.tumblr.com/1877bcca2cf5df5c129152d2dbbdfbb4/tumblr_mh7gxafAjc1qdlh1io1_400.gif)
Is your intended audience aware of how streams work? You link to the Streams docs above, but if you expect many readers will not be familiar, a quick explanation of how `.pipe` works would support your statement that `.pipe` is powerful.