Fix for devenv.

doc/install.md

@@ -137,7 +137,7 @@ export WORLD_ORIGIN_ELEVATION=29.8
 
 #source /opt/ros/melodic/setup.bash
 source ${HOME}/wara_ws/devel/setup.bash
-export PATH=${HOME}/waraps/script:${PATH}
+export PATH=${HOME}/lrs_devenv_common/script:${PATH}
 ```
 
 Then log in and log out to the development system for the docker commands to work.  Test this with:
@@ -145,8 +145,12 @@ Then log in and log out to the development system for the docker commands to wor
 ```bash
 docker ps
 ```
-
-++++++++++++++++ What should this say?  Is it just a test that nothing crashes or do you want to see something in particular?
+It should show:
+```bash
+tompe@philo:~$ docker ps
+CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS               NAMES
+tompe@philo:~$ 
+```
 
 At this point your system now has the necessary software installed.
 
@@ -157,12 +161,15 @@ glxgears
 glmark2
 ```
 
-
-If the above commands execute without errors you can test that Gazebo works correctly on your development system:
+If the above commands execute without errors you can test that Gazebo
+works correctly on your development system:
 
 ```bash
 roslaunch lrs_wara_gazebo gazebo.launch
 roslaunch lrs_wara_gazebo dji_to_gazebo.launch name:=dji0 with_laser:=true x:=5
 ```
 
-+++++++++++++++++++ Does any of this require an actual development environment to be installed or is this completely self-contained in the playbook software etc?
+All files to run these tests should be available in lrs_wara_gazebo
+which is installed in wara_ws by the Playbook above. The first command
+starts Gazebo and the second command add a model of a DJI M100 to the
+Gazebo world.