Add hot deploy paragraph to README
Add hot deploy paragraph to README

openshift/sti-nodejs,bucharest-gold/origin-s2i-nodejs,mbetsy/sti-nodejs,bachp/sti-conan,mfojtik/sti-nodejs,bucharest-gold/origin-s2i-nodejs,sdodson/sti-nodejs,zeptosys/s2i-nodejs,zeptosys/s2i-nodejs,bachp/sti-conan,ryanj/origin-s2i-nodejs,openshift/sti-nodejs,hhorak/sti-nodejs,ryanj/origin-s2i-nodejs,mfojtik/sti-nodejs,sdodson/sti-nodejs,hhorak/sti-nodejs,mbetsy/sti-nodejs,bachp/sti-conan