docs: update readme

Author: zhzLuke96

README.md

@@ -1,52 +1,71 @@
-# WSL2 Kernel Builder
+# Let's build wsl2 kernels 🛠️
 
-This repository automates building custom WSL2 kernels using GitHub Actions.
+[![GitHub Actions](https://img.shields.io/github/actions/workflow/status/lenML/lets-build-wsl2-kernels/build.yml?style=flat-square)](https://github.com/lenML/lets-build-wsl2-kernels/actions)
+[![License](https://img.shields.io/badge/license-MIT-blue.svg?style=flat-square)](LICENSE)
 
-## Features
+This repository provides automated builds of Microsoft's official WSL2 kernel sources, compiling and releasing only the bzImage kernel files.
 
-- Build any WSL2 kernel version from Microsoft's repository
-- Manual trigger with custom version and config options
-- Weekly automatic builds of the latest stable version
-- Artifact with compiled kernel and config
+## Why This Exists ❓
 
-## Usage
+Microsoft maintains the [WSL2-Linux-Kernel](https://github.com/microsoft/WSL2-Linux-Kernel) but:
+- Doesn't provide pre-built historical kernel versions
+- Only distributes kernels through Windows Update
+- Makes it difficult to test different kernel versions
+
+This project:
+- Automates building official Microsoft kernel sources exactly as released
+- Provides access to historical kernel versions
+- Only distributes the compiled bzImage (kernel binary)
+- Does NOT provide or modify any vhdx files
+
+## Features ✨
+
+- Builds any WSL2 kernel version from Microsoft's repository
+- Manual trigger with version selection
+- Weekly automatic builds of latest stable version
+- Provides only the bzImage kernel file
+- Clean builds with no modifications
+
+## Usage 🚀
 
 ### Manual Build via GitHub UI
 
 1. Go to "Actions" tab
 2. Select "Build WSL2 Kernel"
 3. Click "Run workflow"
-4. Specify kernel version (e.g. `5.15.150.1`)
-5. (Optional) Add extra config options (e.g. `CONFIG_USB_VIDEO_CLASS=y`)
-6. Click "Run workflow"
+4. Specify kernel version (e.g. `5.15.90.1`)
+5. Click "Run workflow"
 
-### Download and Use Built Kernel
+### Install Compiled Kernel
 
-1. After build completes, download the artifact
-2. Extract the `bzImage` file
-3. Place it in your desired location (e.g. `C:\Windows\System32\lxss\tools`)
-4. Create or modify `%USERPROFILE%\.wslconfig`:
+1. Download the bzImage artifact after build completes
+2. Place it in your preferred location (e.g. `C:\Windows\System32\lxss\tools`)
+3. Create/modify `%USERPROFILE%\.wslconfig`:
 
 ```ini
 [wsl2]
 kernel=C:\\path\\to\\bzImage
 ```
 
-5. Restart WSL: `wsl --shutdown`
+4. Restart WSL: `wsl --shutdown`
 
 ### Local Build
 
-To build locally, run:
+To build locally from official sources:
 
 ```bash
-./scripts/build.sh [version] [extra_config]
+./scripts/build.sh [version]
 ```
 
 Example:
 ```bash
-./scripts/build.sh 5.15.150.1 "CONFIG_USB_VIDEO_CLASS=y"
+./scripts/build.sh 5.15.90.1
 ```
 
-## Supported Versions
+## Supported Versions 📦
+
+All versions from Microsoft's [WSL2-Linux-Kernel](https://github.com/microsoft/WSL2-Linux-Kernel/tags) can be built.
+
+## License 📄
 
-Check available versions at [Microsoft's WSL2-Linux-Kernel repository](https://github.com/microsoft/WSL2-Linux-Kernel/tags)
+Kernel code is under Microsoft's original licenses. Build scripts are MIT licensed.