Add description and images about DTC's website in the README file

[CODEX108]

This issue aims to improve the content and functionality of the Diploma Tech Community (DTC) website. Contributions from the community are encouraged to enhance the user experience and ensure seamless usage.

Template for an Ideal README:

The README for the DTC website should include the following sections:

Introduction: Shortly introduce DTC in 1-2 lines.
Just add a screenshot of the website (only 1 image)
Contribution Guidelines: Explain how contributors can participate in improving the website. Ask them to refer the contribution.md file for detailed instructions.
Issue Submission: Provide guidance on raising issues effectively.
Encouragement to Contribute: Include a motivating message to encourage community members to contribute actively.

Note : The agenda of this readme is primarily focused on encouraging people to contribute and enhance DTC's website

Regards
Team DTC