Added basic README information

README.md

@@ -2,4 +2,24 @@
 
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-## [WEBSITE](https://azerothcore.github.io/)
+## Introduction
+
+AzerothCore is an open source game-server application for World of Warcraft, currently supporting the 3.3.5a game version.
+
+It is written in C++ and based on MaNGOS, TrinityCore and SunwellCore.
+
+## Why AzerothCore?
+
+Our main goal is to create a playable game server, offering a fully working game experience. In short, we focus on the **user experience (UX)**.
+
+Like MaNGOS and TrinityCore did in past, we like to write clean code and doing software development right, but **our main goal is to have fully working features**. In other terms, we always prefer proper solutions to problems, but we may accept "*hackfixes*" (when they do not affect the game stability) if a proper solution is not available yet.
+
+We also believe in [software modularity](https://en.wikipedia.org/wiki/Modular_programming), because the more the software is modular, and the more it will be easy to be maintained, understood, developed, etc...
+
+## Work in progress...
+
+The project is still undert a work in progress phase, so all guidelines may not be available yet, but feel free to starting contributing. We will love to review and accept your PRs.
+
+## Links
+
+- [Website](https://azerothcore.github.io/)