Jerry Hu

## Purpose of the PR Improve documentation surrounding the quickstart guide. Encountered an issue where the RaftRequests file was not correctly compiled. Updated guide to provide solution through rebuilding folder...

fix: update contribution doc to be more welcoming to new comers

4

## Purpose of the PR update documentation to be more similar to https://github.com/GreptimeTeam/greptimedb/contribute when it comes to first contributions to make it more welcoming for new contributers. ## Main Changes...