Update README.md

Author: uhooi

README.md

@@ -1,2 +1,45 @@
 # swift-http-client
+
+[![CI](https://github.com/uhooi/swift-http-client/actions/workflows/main.yml/badge.svg?branch=main)](https://github.com/uhooi/swift-http-client/actions/workflows/main.yml)
+[![Release](https://img.shields.io/github/v/release/uhooi/swift-http-client)](https://github.com/uhooi/swift-http-client/releases/latest)
+[![License](https://img.shields.io/github/license/uhooi/swift-http-client)](https://github.com/uhooi/swift-http-client/blob/main/LICENSE)
+[![Twitter](https://img.shields.io/twitter/follow/the_uhooi?style=social)](https://twitter.com/the_uhooi)
+
 Communicate via HTTP easily in Swift.
+
+## Table of Contents
+
+- [Installation](#installation)
+- [How to use](#how-to-use)
+- [Contribution](#contribution)
+
+## Installation
+
+### Swift Package Manager (Recommended)
+
+#### Package
+
+TBD
+
+#### Xcode
+
+TBD
+
+### CocoaPods
+
+TBD
+
+### Carthage
+
+TBD
+
+## How to use
+
+You can just import `HTTPClient` to use it.
+
+## Contribution
+
+I would be happy if you contribute :)
+
+- [New issue](https://github.com/uhooi/swift-http-client/issues/new)
+- [New pull request](https://github.com/uhooi/swift-http-client/compare)