Add link to stretch_demos README

stretch_demos/README.md

@@ -56,12 +56,12 @@ Then, press the key with the / and ? on it while in the terminal to initiate a s
 
 ### Autodocking with Nav Stack
 
-For this demo, the robot will look for a docking station with an ArUco marker, align itself to the docking station using the ROS Nav Stack, and then back up into the docking station using an error-based controller. Prior to running this demo, you should stow the robot, ensure that you have a pregenerated map and the docking station is resting against a wall. Go through [this]() tutorial to understand how the demo works.
+For this demo, the robot will look for a docking station with an ArUco marker, align itself to the docking station using the ROS Nav Stack, and then back up into the docking station using an error-based controller. Prior to running this demo, you should stow the robot, ensure that you have a pregenerated map and the docking station is resting against a wall. Go through [this
](https://docs.hello-robot.com/0.2/stretch-tutorials/ros1/autodocking_nav_stack/) tutorial to understand how the demo works.
 
 You can launch this demo using the following command:
 
 ```
-roslaunch stretch_demos autodocking.launch
+roslaunch stretch_demos autodocking.launch map_yaml:=${HELLO_FLEET_PATH}/maps/<map_name>.yaml
 ```
 
 ## License