Open links under Knowledge Check in new tab.

[Riyan-Mo]

Because

Changing links to markdown links under Knowledge Check so that it opens in new tab.

This PR

• Changing links to markdown links under Knowledge Check so that it opens in new tab.

Issue

Closes #XXXXX

Additional Information

Pull Request Requirements

• I have thoroughly read and understand The Odin Project Contributing Guide
• The title of this PR follows the location of change: brief description of change format, e.g. Intro to HTML and CSS lesson: Fix link text
• The Because section summarizes the reason for this PR
• The This PR section has a bullet point list describing the changes in this PR
• If this PR addresses an open issue, it is linked in the Issue section
• If any lesson files are included in this PR, they have been previewed with the Markdown preview tool to ensure it is formatted correctly
• If any lesson files are included in this PR, they follow the Layout Style Guide

[wise-king-sullyman]

Looks great, thanks!