GitHub Discussions Guide

Recommended categories: - Q&A: Ask questions about usage, troubleshooting, and best practices - Ideas: Propose new features and improvements - Show & Tell: Share what you've built with QuantDB

Suggested linking from README: - https://github.com/franksunye/quantdb/discussions/categories/q-a - https://github.com/franksunye/quantdb/discussions/categories/ideas - https://github.com/franksunye/quantdb/discussions/categories/show-and-tell