fix var name in example to follow JS conventions
fix var name in example to follow JS conventions

BS3 commits: 023731b4c74cac72f55299502a34eb5ef88b8db0

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