Docs: Clarify description of stages 1 and 2
Docs: Clarify description of stages 1 and 2

The description for stages 1 and 2 in the architecture document was
rather confusing. Part of the confusion was in the wording, part in the
description itself.

nhlfr/rkt,jzelinskie/rkt,sinfomicien/rkt,il9ue/rkt,kinvolk/rkt,liugenping/rkt,yifan-gu/rkt,shobhit85/rkt,akshaykarle/rkt,yifan-gu/rocket,blixtra/rkt,euank/rkt,intelsdi-x/rkt,monstermunchkin/rkt,jonboulle/rkt,linki/rkt,iaguis/rkt,lee212/rkt,nhlfr/rkt,adfernandes/rkt,matthaias/rkt,Yhgenomics/rkt,smarvin/rkt,liubq919/rkt,kbrwn/rkt,Wilybald/rkt,sstabellini/rkt,Shashwatsh/rkt,iaguis/rkt,smarvin/rkt,Shashwatsh/rkt,rkt/rkt,akshaykarle/rkt,joshix/rkt,joshix/rkt,smarvin/rkt,jakon89/rkt,mike1729/rkt,matthaias/rkt,iaguis/rkt,blixtra/rkt,kbrwn/rkt,ybubnov/rkt,s-urbaniak/rkt,Yhgenomics/rkt,Wilybald/rkt,markllama/rkt,il9ue/rkt,shobhit85/rkt,euank/rkt,rkt/rkt,jakon89/rkt,jzelinskie/rkt,liugenping/rkt,mike1729/rkt,blixtra/rkt,sgotti/rkt,Wilybald/rkt,endocode/rkt,lee212/rkt,coreos/rkt,intelsdi-x/rkt,akshaykarle/rkt,rkt/rkt,kinvolk/rkt,monstermunchkin/rkt,mike1729/rkt,Shashwatsh/rkt,cab105/rkt,jjlakis/rkt,alban/rkt,il9ue/rkt,lucasallan/rkt,jakon89/rkt,jjlakis/rkt,monstermunchkin/rkt,achanda/rkt,coreos/rkt,alban/rkt,linki/rkt,adfernandes/rkt,euank/rkt,tmrts/rkt,squeed/rkt,sstabellini/rkt,joshix/rkt,dgonyeo/rkt,krnowak/rkt,yifan-gu/rocket,jjlakis/rkt,jasonchaffee/rkt,rkt/rkt,krnowak/rkt,joshix/rkt,alban/rkt,markllama/rkt,s-urbaniak/rkt,coreos/rkt,yifan-gu/rkt,matthaias/rkt,jonboulle/rkt,kinvolk/rkt,achanda/rkt,sinfomicien/rkt,yifan-gu/rocket,tmrts/rkt,kbrwn/rkt,liugenping/rkt,liubq919/rkt,shobhit85/rkt,Wilybald/rkt,jasonchaffee/rkt,liubq919/rkt,yifan-gu/rkt,adfernandes/rkt,krnowak/rkt,jasonchaffee/rkt,ybubnov/rkt,sgotti/rkt,sgotti/rkt,nhlfr/rkt,Yhgenomics/rkt,dgonyeo/rkt,jonboulle/rkt,jzelinskie/rkt,tmrts/rkt,sinfomicien/rkt,kinvolk/rkt,ybubnov/rkt,cab105/rkt,lucasallan/rkt,dgonyeo/rkt,lucasallan/rkt,achanda/rkt,sstabellini/rkt,s-urbaniak/rkt,endocode/rkt,intelsdi-x/rkt,endocode/rkt,linki/rkt,markllama/rkt,squeed/rkt,lucasallan/rkt,lee212/rkt,squeed/rkt,cab105/rkt