Docs: replace missing code example
Docs: replace missing code example

Signed-off-by: John Thornton <601166b5efca3d35ab1942428a84fb6f8bcae6cc@gnipsel.com>

araisrobo/machinekit,ArcEye/machinekit-testing,aschiffler/linuxcnc,EqAfrica/machinekit,ArcEye/machinekit-testing,unseenlaser/linuxcnc,araisrobo/linuxcnc,mhaberler/machinekit,Cid427/machinekit,Cid427/machinekit,araisrobo/machinekit,cdsteinkuehler/MachineKit,bmwiedemann/linuxcnc-mirror,strahlex/machinekit,ianmcmahon/linuxcnc-mirror,RunningLight/machinekit,jaguarcat79/ILC-with-LinuxCNC,aschiffler/linuxcnc,ianmcmahon/linuxcnc-mirror,araisrobo/machinekit,cdsteinkuehler/MachineKit,RunningLight/machinekit,unseenlaser/machinekit,unseenlaser/machinekit,Cid427/machinekit,araisrobo/linuxcnc,bmwiedemann/linuxcnc-mirror,ArcEye/MK-Qt5,RunningLight/machinekit,bobvanderlinden/machinekit,mhaberler/machinekit,Cid427/machinekit,Cid427/machinekit,cdsteinkuehler/linuxcnc,narogon/linuxcnc,ikcalB/linuxcnc-mirror,unseenlaser/machinekit,cdsteinkuehler/linuxcnc,cdsteinkuehler/linuxcnc,unseenlaser/linuxcnc,araisrobo/machinekit,Cid427/machinekit,ArcEye/MK-Qt5,ianmcmahon/linuxcnc-mirror,unseenlaser/machinekit,kinsamanka/machinekit,bmwiedemann/linuxcnc-mirror,bmwiedemann/linuxcnc-mirror,Cid427/machinekit,ianmcmahon/linuxcnc-mirror,ArcEye/machinekit-testing,ikcalB/linuxcnc-mirror,cnc-club/linuxcnc,ArcEye/machinekit-testing,strahlex/machinekit,ArcEye/machinekit-testing,RunningLight/machinekit,cnc-club/linuxcnc,cdsteinkuehler/linuxcnc,aschiffler/linuxcnc,ianmcmahon/linuxcnc-mirror,bmwiedemann/linuxcnc-mirror,kinsamanka/machinekit,araisrobo/linuxcnc,narogon/linuxcnc,RunningLight/machinekit,mhaberler/machinekit,bobvanderlinden/machinekit,cnc-club/linuxcnc,ArcEye/MK-Qt5,ArcEye/machinekit-testing,RunningLight/machinekit,ArcEye/MK-Qt5,unseenlaser/machinekit,EqAfrica/machinekit,cdsteinkuehler/linuxcnc,ArcEye/machinekit-testing,narogon/linuxcnc,strahlex/machinekit,kinsamanka/machinekit,mhaberler/machinekit,RunningLight/machinekit,kinsamanka/machinekit,mhaberler/machinekit,ArcEye/MK-Qt5,unseenlaser/machinekit,EqAfrica/machinekit,bobvanderlinden/machinekit,aschiffler/linuxcnc,cnc-club/linuxcnc,ianmcmahon/linuxcnc-mirror,ianmcmahon/linuxcnc-mirror,jaguarcat79/ILC-with-LinuxCNC,ArcEye/MK-Qt5,cnc-club/linuxcnc,ikcalB/linuxcnc-mirror,strahlex/machinekit,araisrobo/machinekit,bmwiedemann/linuxcnc-mirror,bobvanderlinden/machinekit,EqAfrica/machinekit,ikcalB/linuxcnc-mirror,mhaberler/machinekit,EqAfrica/machinekit,jaguarcat79/ILC-with-LinuxCNC,strahlex/machinekit,ikcalB/linuxcnc-mirror,cdsteinkuehler/MachineKit,ikcalB/linuxcnc-mirror,strahlex/machinekit,ArcEye/MK-Qt5,strahlex/machinekit,ArcEye/machinekit-testing,cdsteinkuehler/MachineKit,ikcalB/linuxcnc-mirror,unseenlaser/linuxcnc,araisrobo/linuxcnc,kinsamanka/machinekit,ArcEye/MK-Qt5,cdsteinkuehler/MachineKit,araisrobo/machinekit,unseenlaser/linuxcnc,EqAfrica/machinekit,jaguarcat79/ILC-with-LinuxCNC,Cid427/machinekit,narogon/linuxcnc,kinsamanka/machinekit,EqAfrica/machinekit,araisrobo/machinekit,araisrobo/machinekit,kinsamanka/machinekit,RunningLight/machinekit,kinsamanka/machinekit,unseenlaser/machinekit,bobvanderlinden/machinekit,mhaberler/machinekit,mhaberler/machinekit,cdsteinkuehler/linuxcnc,unseenlaser/linuxcnc,aschiffler/linuxcnc,jaguarcat79/ILC-with-LinuxCNC,bobvanderlinden/machinekit,bobvanderlinden/machinekit,unseenlaser/machinekit,bmwiedemann/linuxcnc-mirror,araisrobo/linuxcnc,araisrobo/machinekit,bobvanderlinden/machinekit,EqAfrica/machinekit,cdsteinkuehler/MachineKit,cnc-club/linuxcnc,narogon/linuxcnc,cnc-club/linuxcnc