README.md: Add linespace after gitter badge

Author: yashovardhan

README.md

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 # <img src="https://github.com/Addy-Smart-Addresses/Addy-React-Native/blob/master/readme_assets/logo.png" alt="Addy" height="42" width="42"></img>   Addy-React-Native
 
 [![Join the chat at https://gitter.im/Addy-Smart-Addresses/Addy-React-Native](https://badges.gitter.im/Addy-Smart-Addresses/Addy-React-Native.svg)](https://gitter.im/Addy-Smart-Addresses/Addy-React-Native?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
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 A React Native based app for Addy
 
 [Addy](https://github.com/Addy-Smart-Addresses/Addy) is a web app that enhances the addressing system of the world. Instead of remembering long addresses, Addy generates a unique 7-digit code based on the latitudinal and longitudinal coordinates of any position. The code is so accurate that every building in the world has been assigned a different 'Addy' with a minimum distance of 11.132 meters.