Fix a small eap versions inaccuracy in Luna stats blog

This: "EAP 6.0/EAP 6.1 server is picking up". Looking at the chart, EAP 6.0 is
very low in the list, instead I believe Max meant 6.1, 6.2 and 6.3 - those are
also the ones offered through $0 subscription, not 6.0.