update shields (pterodactyl#1265)

Author: schrej

README.md

@@ -1,8 +1,12 @@
 [![Logo Image](https://cdn.pterodactyl.io/logos/Banner%20Logo%20Black@2x.png)](https://pterodactyl.io)
 
-[![Build Status](https://travis-ci.org/pterodactyl/panel.svg?branch=develop)](https://travis-ci.org/pterodactyl/panel) [![StyleCI](https://styleci.io/repos/47508644/shield?branch=develop)](https://styleci.io/repos/47508644) [![codecov](https://codecov.io/gh/pterodactyl/panel/branch/develop/graph/badge.svg)](https://codecov.io/gh/Pterodactyl/Panel)
+[![Build status](https://img.shields.io/travis/pterodactyl/panel/develop.svg?style=flat-square)](https://travis-ci.org/pterodactyl/panel)
+[![StyleCI](https://styleci.io/repos/47508644/shield?branch=develop)](https://styleci.io/repos/47508644)
+[![Codecov](https://img.shields.io/codecov/c/github/pterodactyl/panel/develop.svg?style=flat-square)](https://codecov.io/gh/Pterodactyl/Panel)
+[![Discord](https://img.shields.io/discord/122900397965705216.svg?style=flat-square&label=Discord)](https://pterodactyl.io/discord)
 
 # Pterodactyl Panel
+
 Pterodactyl is the open-source game server management panel built with PHP7, Nodejs, and Go. Designed with security in mind, Pterodactyl runs all game servers in isolated Docker containers while exposing a beautiful and intuitive UI to administrators and users.
 What more are you waiting for? Make game servers a first class citizen on your platform today.