fixed README.md

README.md

@@ -12,12 +12,12 @@ Build the catkin workspace and run the simulation with:
 ```
 catkin build
 source devel/setup.bash
-roslaunch panda_simulation simulation.launch
+roslaunch panda_teaching simulation.launch
 ```
 
 #### Teaching poses
 
-You can teach the (simulated) robot several poses which can be replayed in the order there where taught.
+You can teach the (simulated) robot several poses which can be replayed in the order they where taught.
 
 ##### Steps to teach the robot poses