.gitignore in book-value-0.0.5 vs .gitignore in book-value-0.0.6

@@ -52,5 +52,6 @@
 # unless supporting rvm < 1.11.0 or doing something fancy, ignore this:
 .rvmrc
 
 # Used by RuboCop. Remote config files pulled in from inherit_from directive.
 # .rubocop-https?--*
+.DS_Store