[api-upload-refactor] Document API usage, link from README

README.md

@@ -10,6 +10,7 @@ This is a repository of essential scripts written in Swift for Loverde Co. used
 
 ## Features
 - [x] Many usefull scripts extensions
+- [x] `API` — typed async networking + multipart uploads. See **[Documentation/API.md](Documentation/API.md)**
 
 
 Installation
@@ -50,6 +51,21 @@ self.navigationController?.popViewControllerWithHandler {
     //Do some stuff after pop
 }
 ```
+* Networking with `API`
+
+```swift
+struct User: Decodable, Sendable { let id: Int; let name: String }
+
+let user: User = try await API.shared.request(
+    url: "https://api.example.com/users/{id}",
+    method: .get,
+    pathParams: ["id": "42"]
+)
+```
+
+Full guide — requests, uploads, client certificates, error handling, and why it
+beats a hand-rolled `URLSession`: **[Documentation/API.md](Documentation/API.md)**
+
 ## Another components
 > LCESnackBarView - **great way to send feedback to user**