Documentation: update rkt image list example
Documentation: update rkt image list example

With the new fields added.

jakon89/rkt,lucasallan/rkt,joshix/rkt,lucasallan/rkt,cab105/rkt,ybubnov/rkt,blixtra/rkt,lucasallan/rkt,sgotti/rkt,ybubnov/rkt,rkt/rkt,il9ue/rkt,s-urbaniak/rkt,monstermunchkin/rkt,achanda/rkt,sinfomicien/rkt,rkt/rkt,coreos/rkt,sgotti/rkt,joshix/rkt,shobhit85/rkt,matthaias/rkt,mike1729/rkt,kinvolk/rkt,linki/rkt,Wilybald/rkt,sgotti/rkt,linki/rkt,cab105/rkt,Wilybald/rkt,endocode/rkt,rkt/rkt,monstermunchkin/rkt,blixtra/rkt,markllama/rkt,jonboulle/rkt,dgonyeo/rkt,shobhit85/rkt,kinvolk/rkt,nhlfr/rkt,squeed/rkt,intelsdi-x/rkt,alban/rkt,sstabellini/rkt,intelsdi-x/rkt,nhlfr/rkt,s-urbaniak/rkt,joshix/rkt,akshaykarle/rkt,akshaykarle/rkt,yifan-gu/rocket,cab105/rkt,ybubnov/rkt,yifan-gu/rkt,jjlakis/rkt,kinvolk/rkt,squeed/rkt,akshaykarle/rkt,yifan-gu/rkt,joshix/rkt,il9ue/rkt,rkt/rkt,sstabellini/rkt,Shashwatsh/rkt,lucasallan/rkt,monstermunchkin/rkt,jjlakis/rkt,sinfomicien/rkt,squeed/rkt,kinvolk/rkt,mike1729/rkt,jjlakis/rkt,achanda/rkt,achanda/rkt,mike1729/rkt,yifan-gu/rkt,intelsdi-x/rkt,matthaias/rkt,Shashwatsh/rkt,shobhit85/rkt,tmrts/rkt,blixtra/rkt,euank/rkt,Wilybald/rkt,alban/rkt,kbrwn/rkt,nhlfr/rkt,Wilybald/rkt,jakon89/rkt,kbrwn/rkt,matthaias/rkt,euank/rkt,kbrwn/rkt,jonboulle/rkt,coreos/rkt,sstabellini/rkt,dgonyeo/rkt,Shashwatsh/rkt,yifan-gu/rocket,sinfomicien/rkt,markllama/rkt,endocode/rkt,endocode/rkt,yifan-gu/rocket,euank/rkt,dgonyeo/rkt,tmrts/rkt,jakon89/rkt,markllama/rkt,tmrts/rkt,alban/rkt,s-urbaniak/rkt,il9ue/rkt,jonboulle/rkt,linki/rkt,coreos/rkt