Small error on documentation page of Bootstrap 3.0.

Created by: usaphp

On the documentation page (Core CSS -> Grid System) it says: "Nested rows should include a set of columns that add up to the number of columns of its parent." but it is not the case with new fluid spans. Screenshot: https://www.evernote.com/shard/s21/sh/8d224734-5645-4abf-b257-ffa56171c004/2e5fbe6a01328b11825b9a0b3f818985/deep/0/Screenshot%201/16/13%2010:35%20PM.jpg