add -Fastest optimization note
add -Fastest optimization note

claudioredi/aerogear-ios-oauth2,OpenStack-mobile/aerogear-ios-oauth2,410Labs/aerogear-ios-oauth2,danielpassos/aerogear-ios-oauth2,OpenStack-mobile/aerogear-ios-oauth2,410Labs/aerogear-ios-oauth2,aerogear/aerogear-ios-oauth2,claudioredi/aerogear-ios-oauth2,aerogear/aerogear-ios-oauth2,danielpassos/aerogear-ios-oauth2