Fix broken Reddit bot tutorial link

[harsha08-2k6]

Description

Motivation and Context

How Has This Been Tested?

Types of changes

• [✅] Content Update (change which fixes an issue or updates an already existing submission)
• New Article (change which adds functionality)
• [✅] Documentation change

Checklist:

• My code follows the code style of this project.
• [✅] I have updated the documentation accordingly.
• [✅] I have read the CONTRIBUTING document.
• [✅] I have made checks to ensure URLs and other resources are valid

[camadkins]

This is replacing the content, not updating the link:

Fixed link is here, the website went through an upgrade and url schemes were updated, see below:

https://pythonforengineers.com/blog/build-a-reddit-bot-part-1/