Update README.md

Author: rhedgpeth

README.md

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 # PHP Quickstart
 
-This repository contains a simple web application that demonstrates how to quickly connect to and communicate with a [MariaDB](https://mariadb.com) database using [PHP](https://www.php.net/) (via [mysqli](https://www.php.net/manual/en/book.mysqli.php). 
+This repository contains a simple web application that demonstrates how to quickly connect to and communicate with a [MariaDB](https://mariadb.com) database using [PHP](https://www.php.net/) (via [mysqli](https://www.php.net/manual/en/book.mysqli.php)). 
 
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