Added more content to README.md
Added more content to README.md

ibm-bluemix-omnichannel-iclabs/ICLab-OmniChannelAppDev,ibm-bluemix-omnichannel-iclabs/ICLab-OmniChannelAppDev,ibm-bluemix-omnichannel-iclabs/ICLab-OmniChannelAppDev,ibm-bluemix-omnichannel-iclabs/ICLab-OmniChannelAppDev,ibm-bluemix-omnichannel-iclabs/ICLab-OmniChannelAppDev