update carousel js docs to reflect leading .glyphicon
update carousel js docs to reflect leading .glyphicon

BS3 commit 00976ff09a3743537b3feefae3199f0fa20cbf3b

2947721120/googlebt4,ztx1491/todc-bootstrap,aaroncnhk/todc-bootstrap,todc/todc-bootstrap,mozillo/todc-bootstrap,todc/todc-bootstrap,up2vs/todc-bootstrap,todc/todc-bootstrap,2947721120/todc-bootstrap