create EMC section in install doc
create EMC section in install doc

(cherry picked from commit de83d81828dcfca344d41b2141bf5567114baf7a)

wallnerryan/flocker-profiles,mbrukman/flocker,1d4Nf6/flocker,w4ngyi/flocker,AndyHuu/flocker,w4ngyi/flocker,Azulinho/flocker,agonzalezro/flocker,wallnerryan/flocker-profiles,w4ngyi/flocker,AndyHuu/flocker,mbrukman/flocker,moypray/flocker,adamtheturtle/flocker,1d4Nf6/flocker,moypray/flocker,agonzalezro/flocker,hackday-profilers/flocker,1d4Nf6/flocker,AndyHuu/flocker,agonzalezro/flocker,adamtheturtle/flocker,achanda/flocker,mbrukman/flocker,moypray/flocker,wallnerryan/flocker-profiles,hackday-profilers/flocker,hackday-profilers/flocker,achanda/flocker,Azulinho/flocker,achanda/flocker,Azulinho/flocker,adamtheturtle/flocker