Add Quick Navigation section to README

[harsh2b]

Type of Change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

Description

This PR adds a 'Quick Navigation' section to the README.md file.
This section uses visually appealing badges to link directly to major sections of the README, improving readability and navigation for users.

Checklist

• I have read the CONTRIBUTING document.
• My code follows the code style (BLACK) of this project.
• I have added tests to cover my changes.
• All new and existing tests passed.
• I have updated the documentation accordingly.
• I have added an appropriate CHANGELOG entry.

Author's Note

I hope this makes more easy for other users to find things.