diff --git a/lessons/lesson-md-gen.rbx b/lessons/lesson-md-gen.rbx
index 50e5841..d91eafe 100644
--- a/lessons/lesson-md-gen.rbx
+++ b/lessons/lesson-md-gen.rbx
@@ -30,9 +30,9 @@ module MarkdownTranslator
     yield
   end
   
+  # via http://blog.macromates.com/2006/wrapping-text-with-regular-expressions/
   def wrap_text(txt, col = 80)
-    txt.gsub(/(.{1,#{col}})( +|$\n?)|(.{1,#{col}})/,
-      "\\1\\3\n") 
+    txt.gsub(/(.{1,#{col}})( +|$\n?)|(.{1,#{col}})/, "\\1\\3\n") 
   end
 
   def para *lines