Reusable Component in React

1. Push logic upwards / Keep it dumb - it(refers to Reusable Component) 
2. Allows extra props to be passed into the component.


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Reusable Components Link: https://hackernoon.com/the-three-types-of-reusable-react-components-37a6bf7c2d69
                          https://egghead.io/lessons/react-create-a-simple-reusable-react-component
                          https://flaviocopes.com/react-example-counter/