fixes 9663: third part, document the resets

BS3 commit c4b59fc1caab59fdc0220d8ad1a8b0df00c7fa56
more docs updates for new examples

BS3 commit b2f626837279bb8b0939aa6602bf9ee023e8a323
use getbootstrap for tweet button

BS3 commit 45e2d73e9360a82f203801962f22058a00134d56
remove grid examples callout

BS3 commit e04590babb90c0ca009e7fbcf3bd8de26680eb3f