README: remove badges on top

Author: randoum

README.md

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 # AbstractAPI php-email-validation library
 
-[![Packagist](https://img.shields.io/packagist/v/abstractapi/php-email-validation.svg)](https://packagist.org/packages/abstractapi/php-email-validation)
-[![Packagist](https://img.shields.io/packagist/dt/abstractapi/php-email-validation.svg)](https://packagist.org/packages/abstractapi/php-email-validation)
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 Integrate the powerful [email validation API from Abstract](https://www.abstractapi.com/email-verification-validation-api) in your PHP project in a few lines of code.
 
 Abstract's Email Validation and Verification API is a fast, lightweight, modern, and RESTful JSON API for determining the validity and other details of email addresses.