fix concepts/index
fix concepts/index

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