add gitignore and fichier tuto bot python

.gitignore

+/.env

tuto_move.py

+import rclpy                  # core ROS2 client python librairie
+from rclpy.node import Node   # To manipulate ROS Nodes
+
+from geometry_msgs.msg import Twist # Message to publish:
+
+print("tuto_move :: START...")
+
+def main():
+    rclpy.init()     # Initialize ROS2 client
+    myNode= Node('move_node') # Create a Node, with a name     
+
+    # Initialize a publisher:
+    velocity_publisher = myNode.create_publisher(Twist, '/multi/cmd_nav', 10)
+
+
+    # Start the ros infinit loop with myNode.
+    while True :
+        rclpy.spin_once( myNode, timeout_sec=0.1 )
+        print("Running...")
+
+        # Publish a msg
+        velo = Twist()
+        velo.linear.x= 0.2   # meter per second
+        velo.angular.z = 0.5 # radians per second
+        velocity_publisher.publish(velo)    
+
+    # At the end, destroy the node explicitly.
+    move.destroy_node()
+
+    # and shut the light down.
+    rclpy.shutdown()
+
+    print("tuto_move :: STOP.")
+
+
+
+
+
+
+
+
+
+
+
+# activate main() function,
+# if the file is executed as a script (ie. not imported).
+if __name__ == '__main__':
+    # call main() function
+    main()
\ No newline at end of file