Anchor Tag "Learning Sandbox" is broken in Chapter 4

[indcoder]

Describe the bug
The Learning Sandbox link at the bottom of the Prompt Engineering Section is broken

Did a bit of tinkering and found the links work when README is the resource the URL path is pointing to.

To Reproduce
Steps to reproduce the behavior:

1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error

Expected behavior
A clear and concise description of what you expected to happen.

Screenshots
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Desktop (please complete the following information):

• OS: [e.g. iOS]
• Browser [e.g. chrome, safari]
• Version [e.g. 22]

Smartphone (please complete the following information):

• Device: [e.g. iPhone6]
• OS: [e.g. iOS8.1]
• Browser [e.g. stock browser, safari]
• Version [e.g. 22]

Additional context
Add any other context about the problem here.

[github-actions]

👋 Thanks for contributing @indcoder! We will review the issue and get back to you soon.

[github-actions]

This issue has not seen any action for a while! Closing for now, but it can be reopened at a later date.