diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index a486349..063f76f 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -79,7 +79,7 @@ jobs:
       - name: Sign the published Docker image
         env:
           # https://docs.github.com/en/actions/security-guides/security-hardening-for-github-actions#using-an-intermediate-environment-variable
-          TAGS: ${{ env.REGISTRY }}/${{ env.IMAGE }}:${{ env.VERSION }},${{ env.REGISTRY }}/${{ env.IMAGE }}:latest
+          TAGS: ${{ env.REGISTRY }}/${{ env.IMAGE }}:${{ env.VERSION }} ${{ env.REGISTRY }}/${{ env.IMAGE }}:latest
           DIGEST: ${{ steps.build-and-push.outputs.digest }}
         # This step uses the identity token to provision an ephemeral certificate
         # against the sigstore community Fulcio instance.
diff --git a/README.md b/README.md
index ac2e8d2..a735597 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,157 @@
-# Fuga Cloud `actions-runner` images
+# GitHub Actions Runner Images by FugaCloud
 
-This repo extends the default images to support common tools such as curl.
\ No newline at end of file
+[![License](https://img.shields.io/github/license/FugaCloud/actions-runner-images)](LICENSE)
+
+This repository provides alternative Docker images for self-hosted GitHub Actions runners, serving as a substitute for the official images from [actions/runner-images](https://github.com/actions/runner-images). These images are designed to work seamlessly with the [Actions Runner Controller](https://github.com/actions/actions-runner-controller), including support for Runner Scale Sets as detailed in [GitHub's documentation](https://docs.github.com/en/actions/hosting-your-own-runners/managing-self-hosted-runners-with-actions-runner-controller/deploying-runner-scale-sets-with-actions-runner-controller).
+
+## Table of Contents
+
+- [Overview](#overview)
+- [Features](#added-features)
+- [Prerequisites](#prerequisites)
+- [Getting Started](#getting-started)
+  - [Using Pre-built Images](#using-pre-built-images)
+  - [Deploy with Actions Runner Controller](#deploy-with-actions-runner-controller)
+- [Available Tags](#available-tags)
+- [Customization](#customization)
+- [Updating the Images](#updating-the-images)
+- [Contributing](#contributing)
+
+## Overview
+
+The images provided by this repository are pre-built and available at `registry.fuga.io/public/actions-runner`. They serve as an alternative to the official GitHub Actions runner images and can be utilized in your Kubernetes clusters via the Actions Runner Controller, allowing you to manage self-hosted runners efficiently, including deploying Runner Scale Sets.
+
+## Added features
+
+The following tools and features are added compared to the base image:
+
+- curl
+
+## Prerequisites
+
+- **Kubernetes Cluster**: A running cluster with administrative access.
+- **Actions Runner Controller**: Installed in your Kubernetes cluster. [Installation Guide](https://github.com/actions/actions-runner-controller#installation)
+- **GitHub Access**: Permissions to add self-hosted runners to your repository or organization.
+
+## Getting Started
+
+Follow these steps to deploy your custom GitHub Actions runners using the pre-built images.
+
+### Using Pre-built Images
+
+The pre-built runner images are hosted at `registry.fuga.io/public/actions-runner`. You can use these images directly in your Kubernetes deployments without the need to build them yourself.
+
+Available tags:
+
+- `registry.fuga.io/public/actions-runner:latest`
+- `registry.fuga.io/public/actions-runner:2.319.1`
+
+**Note**: The tag `2.319.1` corresponds to the GitHub Actions Runner version `2.319.1`.
+
+### Deploy with Actions Runner Controller
+
+#### Install Actions Runner Controller (if not already installed)
+
+Follow the [official installation guide](https://github.com/actions/actions-runner-controller#installation) to set up the Actions Runner Controller in your Kubernetes cluster.
+
+#### Configure RunnerDeployment or RunnerSet
+
+Create a `RunnerDeployment` or `RunnerSet` YAML file to deploy the runners using the pre-built image.
+
+```yaml
+apiVersion: actions.summerwind.dev/v1alpha1
+kind: RunnerDeployment
+metadata:
+  name: fugacloud-runner-deployment
+spec:
+  replicas: 2
+  template:
+    spec:
+      repository: your-username/your-repo
+      image: registry.fuga.io/public/actions-runner:latest
+      labels:
+        - custom
+        - self-hosted
+```
+
+- Replace `your-username/your-repo` with your GitHub repository.
+- You can specify a specific runner version by changing the image tag to `2.319.1`.
+
+For deploying Runner Scale Sets, refer to the [GitHub documentation](https://docs.github.com/en/actions/hosting-your-own-runners/managing-self-hosted-runners-with-actions-runner-controller/deploying-runner-scale-sets-with-actions-runner-controller).
+
+#### Apply the Configuration
+
+Deploy the runners by applying the configuration file:
+
+```bash
+kubectl apply -f fugacloud-runner-deployment.yaml
+```
+
+## Available Tags
+
+The following tags are available for the pre-built images:
+
+- `latest`: The latest stable version of the GitHub Actions runner.
+- `2.319.1`: Specific version tag corresponding to GitHub Actions runner version `2.319.1`.
+
+You can specify the desired tag in your deployment configuration:
+
+```yaml
+spec:
+  template:
+    spec:
+      image: registry.fuga.io/public/actions-runner:2.319.1
+```
+
+## Customization
+
+You can customize the runner deployment configurations as needed.
+
+### Update Runner Configuration
+
+Modify the `RunnerDeployment` or `RunnerSet` YAML to adjust environment variables, labels, or other settings.
+
+```yaml
+env:
+  - name: RUNNER_GROUP
+    value: "Custom Group"
+  - name: RUNNER_LABELS
+    value: "custom,self-hosted"
+```
+
+## Updating the Images
+
+The images at `registry.fuga.io/public/actions-runner` are maintained and updated regularly. To use the latest images, update the image tag in your deployment configuration.
+
+```yaml
+spec:
+  template:
+    spec:
+      image: registry.fuga.io/public/actions-runner:latest
+```
+
+Apply the updated configuration:
+
+```bash
+kubectl apply -f fugacloud-runner-deployment.yaml
+```
+
+## Contributing
+
+We welcome contributions! Please fork the repository and submit a pull request with your changes. For significant changes, please open an issue first to discuss your ideas.
+
+---
+
+*For questions or support, please open an issue in this repository.*
+
+---
+
+# Additional Resources
+
+- **Official GitHub Runner Images**: [actions/runner-images](https://github.com/actions/runner-images)
+- **Actions Runner Controller**: [actions/actions-runner-controller](https://github.com/actions/actions-runner-controller)
+- **Deploying Runner Scale Sets**: [GitHub Documentation](https://docs.github.com/en/actions/hosting-your-own-runners/managing-self-hosted-runners-with-actions-runner-controller/deploying-runner-scale-sets-with-actions-runner-controller)
+
+By leveraging the pre-built images provided at `registry.fuga.io/public/actions-runner`, you can efficiently deploy and manage your GitHub Actions runners without the need to build images yourself.
+
+---
\ No newline at end of file