Remove 'examples' from summary (#423)

docs/SUMMARY.md

@@ -20,29 +20,6 @@
     * [Make a Sound Machine](/maker/sound-machine)
     * [Make a Security Gadget](/maker/security-gadget)
 
-* [Examples](/examples)
-    * [Intruder detector](/maker/intruder-detector)
-    * [Puppet](/maker/puppet)
-    * [Three Point Turn 1](/coding/three-point-turn-1)
-    * [Three Point Turn 2](/coding/three-point-turn-2)
-    * [Three Point Turn 3](/coding/three-point-turn-3)
-    * [Reversing the robot 1](/coding/reversing-the-robot-1)
-    * [Reversing the robot 2](/coding/reversing-the-robot-2)
-    * [Reversing the robot 3](/coding/reversing-the-robot-3)
-    * [Light the way 1](/coding/light-the-way-1)
-    * [Light the way 2](/coding/light-the-way-2)
-    * [Light the way 3](/coding/light-the-way-3)
-    * [Traffic Lights 1](/coding/traffic-lights-1)
-    * [Traffic Lights 2](/coding/traffic-lights-2)
-    * [Traffic Lights 3](/coding/traffic-lights-3)
-    * [Reverse Beeper 1](/coding/reverse-beeper-1)
-    * [Reverse Beeper 2](/coding/reverse-beeper-2)
-    * [Reverse Beeper 3](/coding/reverse-beeper-3)
-    * [Ignition](/coding/ignition)
-    * [Cruise Control](/coding/cruise-control)
-    * [Roaming 1](/coding/roaming-1)
-    * [Roaming 2](/coding/roaming-2)
-
 ## Reference #reference
 
 * [Reference](/reference)

docs/design-engineering/make-it-move.md

@@ -6,7 +6,7 @@
 
 Design, build and program a robot that can move itself using no wheels for locomotion.
 
-![Make it move banner](/static/lessons/make-it-move/make-it-move-without-wheels.jpg)
+![Make it move banner](/static/lessons/make-it-move/make-it-move-without-wheels.png)
 
 Your robot will: