chore: add readme file

Author: kmishmael

README.md

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+# Site Deployment Manager
+
+A WordPress plugin that adds a deployment button to trigger static site rebuilds via webhook.
+
+## Description
+
+Site Deployment Manager adds a convenient deployment button to your WordPress admin panel that triggers a webhook to rebuild your static site. The plugin includes built-in logging functionality to track deployment history.
+
+## Features
+
+- One-click deployment trigger from WordPress admin
+- Configurable webhook URL
+- Deployment history logging
+- Clean, modern UI with status indicators
+- Secure nonce verification
+- Rate limiting to prevent multiple simultaneous deployments
+
+## Requirements
+
+- WordPress 5.0 or higher
+- PHP 7.2 or higher
+
+## Installation
+
+1. Upload the plugin files to `/wp-content/plugins/site-deployment-manager`
+2. Activate the plugin through the 'Plugins' screen in WordPress  
+3. Configure your webhook URL in the plugin settings
+
+## Usage
+
+1. Go to WordPress admin panel
+2. Click on the "Deploy" menu item on the left tab.
+3. Configure your webhook URL in Settings
+4. Use the "Deploy Site" button to trigger builds
+5. View deployment history in the logs table
+
+## Screenshots
+
+1. Deployment dashboard with one-click deploy button and logs showing history and status
+
+![](/public_assets/dashboard.png)
+
+2. Deployment settings to configure webhook URL
+
+![](/public_assets/settings.png)
+
+## License
+
+This project is licensed under the GPL v2 or later - see the [LICENSE](https://www.gnu.org/licenses/gpl-2.0.html) file for details.
+
+## Author
+
+Kibet Ishmael ([GitHub](https://github.com/kmishmael))
+
+## Version History
+
+### 1.0.0
+- Initial release