Fixed link to JavaScript buttons plugin
Fixed #9196 - malformed HTML in doc

Stray <h3> was being closed by an </h2>. Updated to valid HTML. Fixes #9196
Merge pull request #9191 from ggam/patch-10

Fixed link to JavaScript buttons plugin
Merge pull request #9198 from bwhitty/3.0.0-wip

Fixed #9196 - malformed HTML in doc
Fixed link to JavaScript buttons plugin
Fixed #9196 - malformed HTML in doc

Stray <h3> was being closed by an </h2>. Updated to valid HTML. Fixes #9196
Merge branch '3.0.0-wip' of https://github.com/twbs/bootstrap into 3.0.0-wip