[Docs]: Added Table of Contents to README file.

[GUNJESH843]

Title

[Docs]: Add Table of Contents to README file.

Description

Added a Table of Contents to the README file of the Crew-Connect repository. The Table of Contents includes anchor links to key sections such as Introduction, Tech Stack, Project Demonstration, Contributing, and Contact. This enhancement improves the navigational structure and usability of the documentation.
example 🌟

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Issue Ticket Number

Fixes #50

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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

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Checklist:

• I have followed the contributing guidelines of this project as mentioned in CONTRIBUTING
• I have checked to ensure there aren't other open Pull Requests for the same update/change?
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes needed to the documentation

[github-actions]

Welcome to Our repository.🎊 Thank you so much for taking the time to point this out.

[GUNJESH843]

@jatiinyadav hey, please review the PR.
Thank you.

[GUNJESH843]

@jatiinyadav
hey,
I have updated 4 files in your repository, and you have not mentioned the GSSOC label before merging them .

[jatiinyadav]

@jatiinyadav hey, I have updated 4 files in your repository, and you have not mentioned the GSSOC label before merging them .

Sorry.