Update README.md

README.md

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-# Satellite
-The API communication module for Swift
+![Frame 7@3x](https://user-images.githubusercontent.com/53814741/231978905-e0540fc8-1ea9-4beb-b088-357778092e66.png)
+
+The Satellite is an API communication module written in Swift.
+
+## v1: Sputnik
+
+### Setting up with API key and your domain
+```swift
+Satellite.setup(key: "{API.KEY}", domain: "{BASE.URL}")
+```
+
+### Sending the request and receiving the response (Combine/Publisher)
+```swift
+Satellite
+    .send(request)
+    .receive(on: responsePublisher)
+    .resume()
+```
+
+### Sending the request and waiting the response (Async await)
+```swift
+let response = try await Satellite.response(from: request)
+```