fixed typo in abstract factory pattern

Author: sankypanhale

abstract-factory/README.md

@@ -142,7 +142,7 @@ Use the Abstract Factory pattern when
 *	Dependency injection in java hides the service class dependencies that can lead to runtime errors that would have been caught at compile time.
 
 ## Tutorial
-* [Abstract Factory Method Tutorial](https://www.journaldev.com/1418/abstract-factory-design-pattern-in-java) 
+* [Abstract Factory Pattern Tutorial](https://www.journaldev.com/1418/abstract-factory-design-pattern-in-java) 
 
 ## Real world examples