Fix up structure and README

examples/14_speed.py

@@ -0,0 +1,42 @@
+from tello_sim.tello_sim_client import TelloSimClient
+
+import time
+
+TEST_DISTANCE = 500
+
+# Create a Tello instance
+tello = TelloSimClient()
+
+# Connect to Tello
+tello.connect()
+
+def pause(next_action: str):
+    print(f"Hovering before {next_action}")
+    for i in range(3, 0, -1):
+        print(i)
+        time.sleep(1)
+
+print("Starting flying in ...")
+for i in range(3, 0, -1):
+    print(i)
+    time.sleep(1)
+
+# Takeoff
+print("Take off")
+tello.takeoff()
+
+pause("ascending")
+tello.move_up(100)
+
+for speed in range(10, 101, 10):
+    pause(f"speed change to {speed} cm/s")
+    print("Setting speed to", speed, "cm/s")
+    tello.set_speed(speed)
+    print(f"Testing forward and back at {speed} cm/s")
+    tello.move_forward(1000)
+    tello.move_back(TEST_DISTANCE)
+    time.sleep(1)
+
+pause("landing")
+print("Finished Landing")
+tello.land()