Cleanup the readme

Author: Vectorial1024

README.md

@@ -5,7 +5,6 @@
 ![PHP Dependency Version](https://img.shields.io/packagist/dependency-v/vectorial1024/open-location-code-php/php?style=plastic&label=PHP)
 ![GitHub Actions Workflow Status](https://img.shields.io/github/actions/workflow/status/Vectorial1024/open-location-code-php/php.yml?style=plastic)
 
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 This is a modern PHP port of the `google/open-location-code` repository. Please visit https://github.com/google/open-location-code for discussion and up-to-date information about **Open Location Code ("OLC", aka "Plus Code")** itself. This repository only concerns the PHP implementation.
 
 But still, a short quote from said repository to introduce Open Location Code (OLC):