Update README.md

Author: DevYeom

README.md

@@ -1 +1,35 @@
-# swift-format-executable
+# swift-format-executable
+
+The `swift-format-executable` repository provides a pre-built executable binary for [apple/swift-format](https://github.com/apple/swift-format) tool. This repository allows you to easily download and use `swift-format` in your CI/CD environments without the need to build it every time.
+
+## Usage
+
+### Download
+
+To download the latest version of the `swift-format` binary, run the following command:
+
+```
+curl -LO https://github.com/DevYeom/swift-format-executable/releases/latest/download/swift-format.zip
+```
+
+To download a specific version of the `swift-format` binary, specify the version in the URL:
+
+```
+curl -LO https://github.com/DevYeom/swift-format-executable/releases/download/510.1.0/swift-format.zip
+```
+
+### Grant Execution Permission
+
+After downloading, give execution permission to the binary:
+
+```
+chmod +x swift-format
+```
+
+### Run
+
+Now, you can use swift-format:
+
+```
+./swift-format --version
+```