docs: Added sample env variables for client and server

[ChinoUkaegbu]

Fixes #638

My PR closes #638

👨‍💻 Changes proposed

I added the extra sample env variables to both the server and client files

✔️ Check List

• My code follows the code style of this project.
• This PR does not contain plagiarized content.
• The title and description of the PR is clear and explains the approach.

[vercel]

@ChinoUkaegbu is attempting to deploy a commit to the dunsin's projects Team on Vercel.

A member of the Team first needs to authorize it.

[Dun-sin]

@ChinoUkaegbu change the title to fit what you did and not what the PR closes, treat it like you're writing a commit message follow this guide(will link them at the end)
but in summary it should be [prefix]: [what you did]

how to write what you did

how to pick which prefix to use

[ChinoUkaegbu]

Thanks, I've edited the title to reflect that!

[Dun-sin]

You did great, thanks for contributing, I hope you will stick around and continue to contribute to this project.

Consider giving this project a star, sharing the project with your friends, and joining the community discord server if you haven't for more resources and opportunities to connect with others. 👉🏽here👈🏽