Reworded kinda confusing line at the end of the README about why we move stuff out of the HEAD into the BODY.
Reworded kinda confusing line at the end of the README about why we move stuff out of the HEAD into the BODY.

Polymer/tools,Polymer/polymer-bundler,Polymer/tools,Polymer/tools,Polymer/polymer-bundler,Polymer/polymer-bundler,Polymer/tools