Update README

README.md

@@ -1,3 +1,60 @@
-# RHELSecureInstanceSetup
+# SecureInstanceSetup
 
-**RHELSecureInstanceSetup** is a script designed to set up and secure a compute instance on RHEL-based distributions, specifically tailored for Linode environments. This script ensures that your instance is up-to-date, secure, and ready for use.
+## Overview
+
+**SecureInstanceSetup** is a script designed to set up and secure a compute instance on RHEL-based distributions. This script ensures that your instance is up-to-date, secure, and ready for use.
+
+## Features
+
+- Updates the system packages.
+- Sets the timezone and hostname.
+- Modifies SSH configuration to enhance security.
+- Updates the `/etc/hosts` file with the instance's IP address and hostname.
+- Prompts for a public SSH key for secure access.
+
+## Prerequisites
+
+- A RHEL-based Linux distribution (e.g., CentOS, Fedora, RHEL).
+- Root access or sudo privileges.
+- `dnf` or `yum` package manager.
+
+## Usage
+
+1. **Clone the repository:**
+
+   ```bash
+   git clone https://git.nickhepler.cloud/nick/RHELSecureInstanceSetup.git
+   cd RHELSecureInstanceSetup
+   ```
+
+2. **Make the script executable:**
+
+   ```bash
+   chmod +x update_system.sh
+   ```
+
+3. **Run the script with root privileges:**
+
+   ```bash
+   sudo ./update_system.sh
+   ```
+
+4. **Follow the prompts:**
+   - Enter your public SSH key when prompted.
+
+## Configuration
+
+- You can customize the `hostname` and `timezone` variables in the script as needed.
+
+## License
+
+This project is licensed under the GNU General Public License v3.0 or later. See the [LICENSE](LICENSE) file for details.
+
+
+## Contributing
+
+Contributions are welcome! Please submit a pull request or open an issue for any enhancements or bug fixes.
+
+## Acknowledgments
+
+- Inspired by the documentation from Akamai (formerly Linode) for [setting up and securing compute instances](https://techdocs.akamai.com/cloud-computing/docs/set-up-and-secure-a-compute-instance).