README.markdown in mask_validator-0.1 vs README.markdown in mask_validator-0.2

@@ -1,9 +1,11 @@
 # MaskValidator
 
 This gem was inspired in the Sobrinho's gems to validate simple things inside of ActiveModel.
 
-Use mask in inputs and validate then in the models.
+Use mask in inputs and validate in the models.
+
+The gem works getting the value before type cast and comparing with a regexp from the mask pattern.
 
 ## Installation
 
 `gem "mask_validator"`