Added Medoo In Database

README.md

 * [Doctrine Extensions](https://github.com/doctrine-extensions/DoctrineExtensions ) - A collection of Doctrine behavioural extensions.
 * [Doctrine](https://www.doctrine-project.org/) - A comprehensive DBAL and ORM.
 * [Laravel Eloquent](https://github.com/illuminate/database) - A simple ORM.
+* [Medoo](https://medoo.in) - The Lightweight PHP Database Framework to Accelerate Development.
 * [Pomm](https://github.com/chanmix51/Pomm) - An Object Model Manager for PostgreSQL.
 * [ProxyManager](https://github.com/Ocramius/ProxyManager) - A set of utilities to generate proxy objects for data mappers.
 * [RedBean](https://redbeanphp.com/index.php) - A lightweight, configuration-less ORM.