Work on doc.

doc/local_ros_installation.md

@@ -117,7 +117,7 @@ wexec roslaunch lrs_launch config.launch location:=granso ns:=/dji0
 ```
 
 
-### Start gazebo using docker:
+### Start gazebo using docker (optionally)
 
 If you have a NVIDIA graphics card and support for that in docker then
 you can if needed start gazebo (and if the container was started with wgrun):
@@ -147,13 +147,13 @@ wexec rosrun lrs_util_tst tstdisplayserver.py __ns:=/op0
 
 ### RVIZ
 
-### Test the two running agent
+### Test the dji0
 
 On the local machine do:
 
-Watch the pose:
+Watch the geopose:
 ```bash
-rostopic echo /dji0/pose
+rostopic echo /dji0/geopose
 ```
 
 Takeoff