docs: add practical example for custom slash command "/explain-this-file" in README #106
Description
This PR adds a complete, ready-to-use example for a custom slash command /explain-this-file to the README's "Custom Slash Commands" section.
Why this is useful:
- Helps new users understand how to create powerful, reusable prompts.
- Demonstrates frontmatter + multi-step reasoning in a real-world scenario (explaining the current file).
- Complements existing examples like /code-review and /bug-fix.
Changes:
- Added a new code block under "Custom Slash Commands" with file path, frontmatter, and prompt content.
- Minor wording tweaks for clarity.
Example added:
Create file: .augment/commands/explain-this-file.md
---
description: Explain the current file in detail
---
You are an expert code explainer.
For the file @file, provide a clear, structured explanation including:
1. **Purpose**: What does this file do overall?
2. **Key Components**: Main functions/classes/exports and their roles.
3. **Data Flow**: How data moves through the file (if applicable).
4. **Potential Improvements**: Any quick suggestions for readability or performance.
Use markdown formatting, code snippets where helpful, and keep it concise but thorough.