README.md in industrial_girl-0.0.1 vs README.md in industrial_girl-0.0.2

@@ -30,10 +30,10 @@
 create a single factory file with spec
   industrial_girl g single
 if you already have factories, but want industrial_girl to overwrite them and make new factories(you can still pass the single argument if needed)
   industrial_girl g force
 
-within your rails app Gemfile, you may need to set the following,
+within your rails app Gemfile, you may need to set the following if you get the following error(Factory already registered),
 gem "factory_girl_rails", :require=>false
 
 ## Contributing
 
 1. Fork it