# Solution Reference: Challenge 3 -- Join the Conversation

This shows an example comment thread. Your conversation will be different.

## Example exchange

### Your comment (on a buddy's issue)

> Good catch on the missing link in welcome.md! I found the same TODO on line 15.
>
> @maria-student Have you also noticed the TODO on line 28? That one mentions a "resources" section that does not exist yet. We could address both in the same PR.

### Buddy's reply

> @your-username Thanks for pointing that out! I had not scrolled that far. Let me update my issue description to cover both TODOs.

## What makes a good comment

- **Specific reference:** Mention what you are responding to (line numbers, file names)
- **Constructive tone:** Add information or ask questions rather than just agreeing
- **@mention:** Tag the person you are talking to so they get notified
- **Actionable:** Your comment helps move the conversation forward

## Alternate approaches

- Comment on an issue someone else filed
- Reply to a comment on your own issue
- Ask a clarifying question about someone else's proposed change

## What matters

The learning objective is participating in asynchronous collaboration. A single thoughtful comment with an @mention is sufficient evidence.

## Authoritative Sources

Use these official references when you need the current source of truth for facts in this chapter.

- [GitHub Docs, home](https://docs.github.com/en)
- [GitHub Changelog](https://github.blog/changelog/)

### Section-Level Source Map

Use this map to verify facts for each major section in this file.

- **Example exchange:** [GitHub Docs, home](https://docs.github.com/en), [GitHub Changelog](https://github.blog/changelog/)
- **What makes a good comment:** [GitHub Docs, home](https://docs.github.com/en), [GitHub Changelog](https://github.blog/changelog/)
- **Alternate approaches:** [GitHub Docs, home](https://docs.github.com/en), [GitHub Changelog](https://github.blog/changelog/)
- **What matters:** [GitHub Docs, home](https://docs.github.com/en), [GitHub Changelog](https://github.blog/changelog/)