add readme

Author: WalderlanSena

README.md

@@ -0,0 +1,6 @@
+<p align="center">
+  <img src="https://oauth.net/images/oauth-2-sm.png" width="100">
+  <img src="https://symfony.com/images/v5/logos/header-logo.svg" width="300">
+  <img src="https://iscte.acm.org/wp-content/uploads/2015/02/mongodb-logo1.png" width="300">
+</p>
+<h1 align="center"> API RestFull com Oauth2, MongoDB com Symfony 4</h1>