Add README.md

README.md

+# ROS Workspace
+
+ROS workspace containing all the assets and sources for the current cup edition.
+
+## Prerequisites
+
+Install ROS Noetic on your machine with all desktop packages.
+
+## How to run a simulation
+
+```sh
+source /opt/ros/noetic/setup.bash
+source devel/setup.bash
+roslaunch galere_experimental_sim single_galere_single_cup.launch
+```
+
+You can control the robot using the teleop node in another terminal:
+
+```sh
+roslaunch galere_teleop galere_teleop_key.launch __ns:=galere
+```