diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -2,4 +2,4 @@ This file is supposed to work along with the spiri simulation, found at https://
 
 To set up the circle simulation, add the files from oscillation_ctrl_with_circle/launch to your oscillation_ctrl/launch folder, and the files from oscillation_ctrl_with_circle/src to your oscillation_ctrl/src folder. 
 
-Once you have copied the files into the correct folders, cd into your catkin_ws, and run catkin build. Once that is done, you are ready to run the circle simulation using roslaunch oscillation_ctrl oscillation_damp_circle.launch. Similar to oscillation_damp.launch, there is a model variable that you can add to your launch command, with options for spiri, spiri_with_tether, and headless_spiri_with_tether.
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+Once you have copied the files into the correct folders, cd into your catkin_ws, and run catkin build. Once that is done, you are ready to run the circle simulation using roslaunch oscillation_ctrl oscillation_damp_circle.launch. Similar to oscillation_damp.launch, there is a model variable that you can add to your launch command, with options for spiri, spiri_with_tether, and headless_spiri_with_tether. There is also a variable turtle, which if set to true will also start a turtlesim node, and turtle_test node which will together create a turtle that follows the drones movement. This allows you to confirm the path is circular.
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