Docs - Getting started: refactor 'Customizing Bootstrap'
Docs - Getting started: refactor 'Customizing Bootstrap'

BS3 commits: 394161f281fc643d2f2ab7b7064972310730e018

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