install script updates 2

docs/ardupilot.md

@@ -25,7 +25,7 @@ Wait until the drone appears in the 3D view!
 ### Terminal 2: Start ArduCopter SITL
 
 ```bash
-source ~/venv-ardupilot/bin/activate
+source ~/.ardupilot_env
 sim_vehicle.py -v ArduCopter -f gazebo-iris --model JSON --console
 ```
 
@@ -36,8 +36,8 @@ You should see:
 ### Terminal 3: Run Controller
 
 ```bash
-source ~/venv-ardupilot/bin/activate
 cd ~/RDC_Simulation
+source activate.sh
 python scripts/run_ardupilot.py --pattern square
 ```