README.markdown in mask_validator-0.2 vs README.markdown in mask_validator-0.2.1

@@ -6,16 +6,22 @@
 
 The gem works getting the value before type cast and comparing with a regexp from the mask pattern.
 
 ## Installation
 
-`gem "mask_validator"`
+Use the github version until a really stable version be released.
 
+`gem "mask_validator", :git => "git://github.com/MarceloCajueiro/mask_validator.git"`
+
 ## Usage:
 
 `validates :phone, mask: "(99) 9999-9999"`
 
 `validates :acronym, mask: "***"`
+
+`validates :acronym, mask: :custom_method`
+
+`validates :acronym, mask: Proc.new{|o| o.custom_method}`
 
 * a - Represents an alpha character (A-Z,a-z)
 * 9 - Represents a numeric character (0-9)
 * * - Represents an alphanumeric character (A-Z,a-z,0-9)