Add README

README.md

+##Sith AE
+
+
+To start working on the project, just run the following commands:
+
+    git clone https://ae-dev.utbm.fr/ae/Sith.git
+    cd Sith
+    python3 manage.py migrate
+
+You will be prompted for your Gitlab account, so you need some.
+
+To start the debug server, just run `python3 manage.py runserver`
+
+####Dependencies:
+  * Django
+
+The development is done with sqlite, but it is advised to set a more robust
+DBMS for production (Postgresql for example)
+
+