README.md in truemail-rspec-0.5.0 vs README.md in truemail-rspec-0.6.0

@@ -127,10 +127,10 @@
 
 #### create_validator
 
 ```ruby
 create_validator(
-  validation_type, # optional, type:Symbol, can be :regex, :mx or :smtp, by default creates :smtp validation
+  validation_type, # optional, type:Symbol, can be :whitelist, :regex, :mx, :mx_blacklist or :smtp, by default creates :smtp validation
   email, # optional, type:String, by default random email
   mail_servers, # optional, type:Array(String), by default array with random ip addresses
   success: true, # optional, type:Bool, by default true
   rcptto_error: 'custom context of rcptto error' # optional, type:String, by default it's equal to 'user not found'
   configuration: create_configuration # optional, type:Truemail::Configuration, by default creates random configuration