update migration guide and correct typos
update migration guide and correct typos

tdiesler/camel,adessaigne/camel,nicolaferraro/camel,tdiesler/camel,DariusX/camel,pax95/camel,zregvart/camel,cunningt/camel,tadayosi/camel,objectiser/camel,pmoerenhout/camel,alvinkwekel/camel,objectiser/camel,alvinkwekel/camel,tdiesler/camel,tdiesler/camel,ullgren/camel,apache/camel,cunningt/camel,tadayosi/camel,gnodet/camel,cunningt/camel,mcollovati/camel,nicolaferraro/camel,pmoerenhout/camel,objectiser/camel,tadayosi/camel,zregvart/camel,tadayosi/camel,cunningt/camel,cunningt/camel,adessaigne/camel,mcollovati/camel,alvinkwekel/camel,ullgren/camel,adessaigne/camel,CodeSmell/camel,pax95/camel,nicolaferraro/camel,nikhilvibhav/camel,DariusX/camel,pmoerenhout/camel,christophd/camel,gnodet/camel,nikhilvibhav/camel,pmoerenhout/camel,zregvart/camel,adessaigne/camel,gnodet/camel,apache/camel,pax95/camel,CodeSmell/camel,pax95/camel,christophd/camel,nicolaferraro/camel,pax95/camel,tdiesler/camel,christophd/camel,nikhilvibhav/camel,ullgren/camel,adessaigne/camel,zregvart/camel,tdiesler/camel,alvinkwekel/camel,adessaigne/camel,DariusX/camel,apache/camel,tadayosi/camel,pax95/camel,nikhilvibhav/camel,christophd/camel,DariusX/camel,apache/camel,gnodet/camel,pmoerenhout/camel,christophd/camel,CodeSmell/camel,apache/camel,cunningt/camel,objectiser/camel,apache/camel,christophd/camel,mcollovati/camel,CodeSmell/camel,pmoerenhout/camel,ullgren/camel,tadayosi/camel,mcollovati/camel,gnodet/camel