Add formatting css and reorganize

lib/default.rb

@@ -1,2 +1,12 @@
 # All files in the 'lib' directory will be loaded
 # before nanoc starts compiling.
+
+class CodeClassSimplfier < Nanoc::Filter
+  identifier :code_class_simplfier
+  type :text
+
+  def run(content, params={})
+    return content.dup.gsub!(/"language-\w+?"/, "codehilite")
+  end
+
+end