Clarify that .panel-heading overrides font-size of <hN> tags
Clarify that .panel-heading overrides font-size of <hN> tags

BS3 commits: 03dbebb216c3658f5f657f7418ea60fdb8136b59

todc/todc-bootstrap,todc/todc-bootstrap,todc/todc-bootstrap,2947721120/todc-bootstrap,2947721120/googlebt4