A version typo

Created by: ednawig

Prerequisites

• I have searched for duplicate or closed issues
• I have validated any HTML to avoid common problems
• I have read the contributing guidelines

Describe the issue

In site/content/docs/5.1/examples/grid/index.html line 113, it says The Bootstrap v4 grid system has five tiers of classes. Looks like it should be v5.

Reduced test cases

nothing

What operating system(s) are you seeing the problem on?

macOS

What browser(s) are you seeing the problem on?

Safari

What version of Bootstrap are you using?

v5.1