Spacing.

src/core/nest.js

@@ -4,23 +4,6 @@
 //nest does is allow a developer to create a hierarchy for a flat set of
 //objects. So, if you have a big csv of items, you can start grouping
 //them by their characteristics. Here's an example of how to use d3.nest
-//
-//             d3.map({a:1}).get('a') == 1
-// 
-//             var books = [ 
-//                 {title: "Hackers & Painters", author: "Paul Graham"},
-//                 {title: "On Lisp", author: "Paul Graham"},
-//                 {title: "Harry Potter and the Philsopher's Stone", author: "J.K. Rowling"},
-//                 {title: "Harry Potter and the Chamber of Secrets", author: "J.K. Rowling"},
-//                 {title: "Harry Potter and the Order of the Phoenix", author: "J.K. Rowling"},
-//                 {title: "If I did it", author: "O.J. Simpson"}
-//              ] 
-// 
-//             var BooksByAuthor = d3.nest()
-//                  .key(function(d){ return d.author})
-//                  .entries(books)
-
-//Boolean function that tells whether or not the key is in the map. 
 // 
 //             d3.map({a:1}).has('a') == true
 //             var books = [