Update documentation about how many ways to specify ownership (#122)

Author: technicalpickles

README.md

@@ -34,7 +34,7 @@ github:
 
 ## Usage: Declaring Ownership
 
-There are three ways to declare code ownership using this gem.
+There are five ways to declare code ownership using this gem:
 
 ### Directory-Based Ownership
 Directory based ownership allows for all files in that directory and all its sub-directories to be owned by one team. To define this, add a `.codeowner` file inside that directory with the name of the team as the contents of that file.