Add missing period on customize page.
Add missing period on customize page.

BS3 commit f811c1b56cb109394268ec66cf3f956f987e5884

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