Update README.md

Author: markburns

README.md

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 [Interactors](https://github.com/collectiveidea/interactor) are a great way to encapsulate business logic in a Rails application. 
 However, sometimes in complex interactor chains, the complex debugging happens at one level up from your easy to read and test interactors.
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 [interactor-contracts](https://github.com/michaelherold/interactor-contracts) does a fantastic job of making your interactor chains more reliable.
 
 Interactify wraps the interactor and interactor-contract gem and provides additional functionality making chaining and understanding interactor chains easier.