anchor.diff:  Hello world!
   ----
   
  -Without quitting your REPL, edit your `js/hello.js` to the following:
  +Without quitting your REPL, edit `src/js/hello.js` to the following:
   
   [source,javascript]
   ----
  
positive.code: ----
  
  Notice that a `:foreign-libs` entry may now specify a directory for `:file`.
  In this case the ClojureScript compiler will recursive search this directory
  for `.js` files and automatically create the `:foreign-libs` entries for you
  with the supplied options. The `:provides` namespace for each entry will
  automatically be created from the directory structure.
  
  Let's create the main ClojureScript namespace:
  
  
negative.code: Let's write the JavaScript:
  
  ----
  mkdir -p src/js
  touch src/js/hello.js
  ----
  
  JavaScript files do not declare namespaces, so the ClojureScript compiler will
  