Update README.md

Author: jkapuscik2

README.md

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 ## Design Patterns
 
 This project is set of simple examples of usage of different design patterns in a real world scenarios. Each one have a short description and guideline:
-- [Intro](https://medium.com/@j.kapuscik2/getting-started-with-design-patterns-in-php-4d451ccdfb71)
-- [Creation Patterns](https://medium.com/@j.kapuscik2/creational-design-patterns-in-php-db365d3245ce)
+- [Factory Method](https://medium.com/@j.kapuscik2/getting-started-with-design-patterns-in-php-4d451ccdfb71)
+- [Creational Patterns](https://medium.com/@j.kapuscik2/creational-design-patterns-in-php-db365d3245ce)
 - [Observer](https://medium.com/@j.kapuscik2/observer-pattern-in-php-2ba240f89fb2)
 - [Iterator](https://medium.com/@j.kapuscik2/iterator-pattern-in-php-b7624f6bdbcf) 
 - [State & Strategy](https://medium.com/@j.kapuscik2/state-strategy-design-patterns-by-example-f57ebd7b6211)