Updated and unified README.md with other images
Updated and unified README.md with other images

hhorak/mysql-container,olysonek/mysql,mfojtik/mysql,vrutkovs/mysql,rhcarvalho/mysql,hhorak/mysql-container,bparees/mysql,rhcarvalho/mysql,bparees/mysql,mfojtik/mysql,praiskup/openshift-mysql,openshift/mysql,vrutkovs/mysql,stevekuznetsov/mysql