Update README.md

[AkhilSharma11681]

ADD: New weather app tutorial

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]

The updated link points to a video that does not exist or is unavailable. Since this doesn’t resolve the issue or provide an accessible tutorial resource, this PR should be closed.