updated README.md with a few text updates and Multiplexing doc updates.
updated README.md with a few text updates and Multiplexing doc updates.

jmptrader/javascript,gcnonato/javascript,jmptrader/javascript,sateen/javascript,pierredelisle7/javascript,devnarayan/javascript,devnarayan/javascript,arminkhoshbin/javascript,devnarayan/javascript,arminkhoshbin/javascript,jmptrader/javascript,gcnonato/javascript,arminkhoshbin/javascript,jwulf/javascript,pierredelisle7/javascript,arminkhoshbin/javascript,gcnonato/javascript,jmptrader/javascript,jmptrader/javascript,sateen/javascript,pierredelisle7/javascript,jwulf/javascript,sateen/javascript,jmptrader/javascript,arminkhoshbin/javascript,devnarayan/javascript,Yesware/pubnub-javascript,jmptrader/javascript,Yesware/pubnub-javascript,pierredelisle7/javascript,sateen/javascript,devnarayan/javascript,Yesware/pubnub-javascript,sateen/javascript,jwulf/javascript,jwulf/javascript,gcnonato/javascript,pierredelisle7/javascript,devnarayan/javascript,devnarayan/javascript,Yesware/pubnub-javascript,Yesware/pubnub-javascript,jwulf/javascript,gcnonato/javascript