Add documentation for local setup guide

[yashdev9274]

Create comprehensive documentation detailing the steps required to set up laminarflow locally. The guide should include prerequisites, installation instructions, environment variable configuration, and troubleshooting tips. Ensure the documentation is clear and accessible for new contributors.

[CoolatMax]

Sure @yashdev9274 . I can create a readme.md file as per the specifications provided. I'll just fork your repo, create a branch, commit and push my changes to the branch, and make a pull request. Once you review the Readme.md and you are satisfied with the Readme, just merge it.