tutorial screenshots

README-skymap.md

@@ -49,7 +49,7 @@ skymap									\
 	--time="${TIME}"
 ```
 
-![skymap tutorial 1](img/skymap-tutorial-01.png)
+![skymap tutorial main](img/skymap-tutorial-main.png)
 
 
 That's a 24h prediction for BW3 for the example location.
@@ -63,6 +63,9 @@ The example has two passes during night time:
 * Low South East.
 * Low South West.
 
+![skymap tutorial low south east](img/skymap-tutorial-low-south-east.png)
+![skymap tutorial low south west](img/skymap-tutorial-low-south-west.png)
+
 In interactive mode, use `l` to change the track length to 3600 secs (1 hour).
 To use `skymap` in interactive mode, launch `skymap` from the command line.
 When you hit `l` in the graphical display, the prompt will be in the terminal
@@ -73,7 +76,7 @@ It makes it faster if `skymap` is run without drawing stars until needed,
 especially during frequent re-renders.
 Disable viewing stars with `shift-Q`.
 
-![skymap tutorial 2](img/skymap-tutorial-02.png)
+![skymap tutorial timestep](img/skymap-tutorial-timestep.png)
 
 At some point you'll get the first pass.
 Then use `<` a few times to reduce the timestep size to something like 450 seconds.