more tweaks to background

content/background.md

@@ -5,5 +5,5 @@ The contributors to this document have been directly involved in the development
 
 This document synthesizes all of our experience and observations on a wide variety of software-as-a-service apps in the wild.  It is a triangulation on ideal practices app development, paying particular attention to the dynamics of the organic growth of an app over time, the dynamics of collaboration between developers working on the app's codebase, and [avoiding the cost of software erosion](http://blog.heroku.com/archives/2011/6/28/the_new_heroku_4_erosion_resistance_explicit_contracts/).
 
-The format is inspired by Martin Fowler's books *[Patterns of Enterprise Application Architecture](http://books.google.com/books/about/Patterns_of_enterprise_application_archi.html?id=FyWZt5DdvFkC)* and *[Refactoring](http://books.google.com/books/about/Refactoring.html?id=1MsETFPD3I0C)*.
+Our motivation is to raise awareness of some systemic problems we've in modern application development, to provide a shared vocabulary for discussing those problems, and to offer a set of broad conceptual solutions to those problems with accompanying terminology.  The format is inspired by Martin Fowler's books *[Patterns of Enterprise Application Architecture](http://books.google.com/books/about/Patterns_of_enterprise_application_archi.html?id=FyWZt5DdvFkC)* and *[Refactoring](http://books.google.com/books/about/Refactoring.html?id=1MsETFPD3I0C)*.
 

views/home.erb

@@ -1,7 +1,7 @@
 <section class="abstract">
   <article><%= render_markdown('intro') %></article>
-  <article><%= render_markdown('who') %></article>
   <article><%= render_markdown('background') %></article>
+  <article><%= render_markdown('who') %></article>
 </section>
 
 <section class="concrete">