Improve README for Community Coding Challenges

[festus-sulumeti]

The README file for the Community Coding Challenges project needs to be updated for better clarity and professionalism. The current README lacks detailed instructions and structured content that would benefit the community.

Tasks:

• [ ] Update Overview: Add a comprehensive overview of the project, explaining its purpose and goals.
• [ ] Participation Instructions: Clearly outline how community members can participate in coding challenges.
• [ ] Challenge Submission Process: Describe the process for submitting challenges, including any required links.
• [ ] Voting and Selection: Provide details on how challenges are voted on and selected.
• [ ] Solution Submission: Explain how solutions should be submitted and any deadlines involved.
• [ ] Meetup Details: Include information on how and when discussions of solutions will occur.
• [ ] Community Links: Add links to join the community and subscribe to any newsletters or channels.

[festus-sulumeti]

Since that was what was missing, am creating some of the things that could be added into to it