merged documentation from master
merged documentation from master

ashfurrow/RxSwift,kousun12/RxSwift,bestwpw/RxSwift,Pluto-tv/RxSwift,ashfurrow/RxSwift,Pluto-tv/RxSwift,sitexa/RxSwift,petester42/RxSwift,cfraz89/RxSwift,kzaher/RxSwift,funsociety/RxSwift,kzaher/RxSwift,kousun12/RxSwift,lintaoSuper/RxSwift,jtribe/RxSwift,a2/RxSwift,thanegill/RxSwift,walmartlabs/RxSwift,bestwpw/RxSwift,a2/RxSwift,ReactiveX/RxSwift,funsociety/RxSwift,walmartlabs/RxSwift,jtribe/RxSwift,tottakai/RxSwift,sunfei/RxSwift,sitexa/RxSwift,petester42/RxSwift,lintaoSuper/RxSwift,thanegill/RxSwift,cfraz89/RxSwift,shiratsu/RxSwift,sitexa/RxSwift,KyoheiG3/RxSwift,ReactiveX/RxSwift,hsoi/RxSwift,sitexa/RxSwift,shiratsu/RxSwift,yoshinorisano/RxSwift,funsociety/RxSwift,ashfurrow/RxSwift,petester42/RxSwift,yoshinorisano/RxSwift,yoshinorisano/RxSwift,slangley/RxSwift,cfraz89/RxSwift,sunfei/RxSwift,a2/RxSwift,thanegill/RxSwift,sunfei/RxSwift,slangley/RxSwift,slangley/RxSwift,ReactiveX/RxSwift,ashfurrow/RxSwift,kzaher/RxSwift,walmartlabs/RxSwift,bestwpw/RxSwift,lingoer/RxSwift,hsoi/RxSwift,kzaher/RxSwift,a2/RxSwift,lingoer/RxSwift,KyoheiG3/RxSwift,lingoer/RxSwift,kousun12/RxSwift,kousun12/RxSwift,lintaoSuper/RxSwift,tottakai/RxSwift,Pluto-tv/RxSwift,KyoheiG3/RxSwift,sunfei/RxSwift,lintaoSuper/RxSwift,Pluto-tv/RxSwift,jtribe/RxSwift,hsoi/RxSwift,bestwpw/RxSwift,walmartlabs/RxSwift,shiratsu/RxSwift,thanegill/RxSwift,slangley/RxSwift,funsociety/RxSwift,lingoer/RxSwift,petester42/RxSwift,jtribe/RxSwift,cfraz89/RxSwift,hsoi/RxSwift,sunfei/RxSwift,yoshinorisano/RxSwift,tottakai/RxSwift