Update README with enhanced features and usage instructions for gh-react

Author: manishraj27

README.md

@@ -1,22 +1,106 @@
 # gh-react
 
-✨ Add emoji reactions to PR comments from your terminal.
+✨ Add emoji reactions to PR comments from your terminal using GitHub CLI.
+
+A GitHub CLI extension that allows you to quickly react to pull request comments, reviews, and descriptions without leaving your terminal.
+
+## Features
+
+- 🎯 React to **all types of PR content**:
+  - PR descriptions/body
+  - General PR comments
+  - Inline code review comments
+  - Review summary comments
+- 🚀 Dynamic PR number support
+- 🔍 Automatic comment type detection
+- ✅ Comprehensive error handling
+- 📋 Lists all available comments with IDs
 
 ## Install
 
 ```bash
-gh extension install yourusername/gh-react
+gh extension install manishraj27/gh-react
 ```
 
-### Usage
+## Usage
+
+### Basic Usage
+
+```bash
+gh react <pr_number>
+```
 
+**Example:**
+```bash
+gh react 23
 ```
-gh react 123
 
+### What happens:
+
+1. **Fetches all comments** from the specified PR
+2. **Lists comments** with their IDs and authors
+3. **Prompts for comment ID** to react to
+4. **Asks for reaction type** from available options
+5. **Sends the reaction** via GitHub API
+
+### Example Output
+
+```bash
+$ gh react 23
+Fetching comments for PR #23...
+Checking if PR #23 exists...
+Fetching comments...
+PR_BODY|23|manishraj27: fix: update homepage URL in package.json
+ISSUE|3045853431|manishraj27: test
+
+Enter comment ID to react to: 3045853431
+Pick a reaction: (+1, -1, laugh, heart, hooray, rocket, eyes)
+Reaction: +1
+Sending reaction...
+Done! 👍
 ```
-It will:
 
-- Show PR comments
-- Ask you to pick a comment ID
-- Ask which emoji to react with
-- Add the reaction via the GitHub API
+## Available Reactions
+
+| Reaction | Description |
+|----------|-------------|
+| `+1` | 👍 Thumbs up |
+| `-1` | 👎 Thumbs down |
+| `laugh` | 😄 Laugh |
+| `heart` | ❤️ Heart |
+| `hooray` | 🎉 Hooray |
+| `rocket` | 🚀 Rocket |
+| `eyes` | 👀 Eyes |
+
+## Comment Types Supported
+
+- **PR_BODY**: The main PR description/body
+- **ISSUE**: General comments on the PR conversation
+- **REVIEW**: Inline comments on specific lines of code
+- **REVIEW_SUMMARY**: Comments submitted with code reviews
+
+## Requirements
+
+- [GitHub CLI](https://cli.github.com/) installed and authenticated
+- Access to the repository containing the PR
+- Bash shell environment
+
+## Error Handling
+
+The extension handles various scenarios:
+- Invalid or non-existent PR numbers
+- PRs with no comments
+- Authentication issues
+- Network connectivity problems
+
+## Contributing
+
+1. Fork the repository
+2. Create your feature branch
+3. Make your changes
+4. Test thoroughly
+5. Submit a pull request
+
+## License
+
+MIT License - see LICENSE file for details.