Cleaned up a few things, added more internal linking in the intro
Cleaned up a few things, added more internal linking in the intro

treasure-data/KeenClient-iOS,treasure-data/KeenClient-iOS,getdrop/KeenClient-iOS,getdrop/KeenClient-iOS,heitortsergent/KeenClient-iOS,treasure-data/KeenClient-iOS,heitortsergent/KeenClient-iOS,heitortsergent/KeenClient-iOS,keenlabs/KeenClient-iOS,getdrop/KeenClient-iOS,Acidburn0zzz/KeenClient-iOS,getdrop/KeenClient-iOS,Acidburn0zzz/KeenClient-iOS,Acidburn0zzz/KeenClient-iOS,keenlabs/KeenClient-iOS,heitortsergent/KeenClient-iOS,heitortsergent/KeenClient-iOS,Acidburn0zzz/KeenClient-iOS,keenlabs/KeenClient-iOS,treasure-data/KeenClient-iOS,getdrop/KeenClient-iOS,Acidburn0zzz/KeenClient-iOS