Change scope to method type.

Author: ndubbs

README.md

@@ -228,7 +228,7 @@ Local variables should not contain underscores.
 
 ## Methods
 
-In method signatures, there should be a space after the scope (-/+ symbol). There should be a space between the method segments (matching Apple's style). Always include a keyword and be descriptive with the word before the argument which describes the argument.
+In method signatures, there should be a space after the method type (-/+ symbol). There should be a space between the method segments (matching Apple's style). Always include a keyword and be descriptive with the word before the argument which describes the argument.
 
 The usage of the word "and" is reserved. It should not be used for multiple parameters as illustrated in the initWithWidth:height: example below.