Update docs

README.md

@@ -54,19 +54,13 @@ let manager = SocialAuthenticationManager(authenticators: [AppleAuthenticator(),
 
 // signIn user with Apple
 let appleAuthenticator = manager.authenticator(for: AppleAuthenticator.self)
-appleAuthenticator?
+let result = try await appleAuthenticator?
   .signIn(from: <view-controller-instance>, with: .random(length: 32))
-  .finally {
-    // handle result
-  }
 
 // signIn user with Facebook
 let facebookAuthenticator = manager.authenticator(for: FacebookAuthenticator.self)
-facebookAuthenticator?
+let result = try await facebookAuthenticator?
   .signIn(from: <view-controller-instance>, with: [.email])
-  .finally {
-    // handle result
-  }
 
 // return currently authenticated authenticator
 let authenticated: Authenticator? = manager.authenticator
@@ -123,19 +117,19 @@ You can easily add new authenticator that is not built-in with PovioKitAuth pack
 
 ```swift
 final class SnapchatAuthenticator: Authenticator {
-  public func signIn(from presentingViewController: UIViewController) -> Promise<Response> {
-    Promise { seal in
+  public func signIn(from presentingViewController: UIViewController) async throws -> Response {
+    try await withCheckedThrowingContinuation { continuation in
       SCSDKLoginClient.login(from: presentingViewController) { [weak self] success, error in
         guard success, error == nil else {
-          seal.reject(with: error)
+          continuation.resume(throwing: error)
           return
         }
 
         let query = "{me{displayName, bitmoji{avatar}}}"
         let variables = ["page": "bitmoji"]
         SCSDKLoginClient.fetchUserData(withQuery: query, variables: variables) { resources in
           ...
-          seal.resolve(with: response)
+          continuation.resume(returning: response)
         }
       }
     }

Sources/Apple/AppleAuthenticator.swift

@@ -33,15 +33,15 @@ public final class AppleAuthenticator: NSObject {
 extension AppleAuthenticator: Authenticator {
   /// SignIn user
   ///
-  /// Will asynchronously return the `Response` object on success or with `Error` on error.
+  /// Will asynchronously return the `Response` object on success or `Error` on error.
   public func signIn(from presentingViewController: UIViewController) async throws -> Response {
     try await appleSignIn(on: presentingViewController, with: nil)
   }
 
   /// SignIn user with `nonce` value
   ///
   /// Nonce is usually needed when doing auth with an external auth provider (e.g. firebase).
-  /// Will asynchronously return the `Response` object on success or with `Error` on error.
+  /// Will asynchronously return the `Response` object on success or `Error` on error.
   public func signIn(from presentingViewController: UIViewController, with nonce: Nonce) async throws -> Response {
     try await appleSignIn(on: presentingViewController, with: nonce)
   }

Sources/Facebook/FacebookAuthenticator.swift

@@ -24,7 +24,7 @@ extension FacebookAuthenticator: Authenticator {
   /// SignIn user.
   ///
   /// The `permissions` to use when doing a sign in.
-  /// Will asynchronously return the `Response` object on success or with `Error` on error.
+  /// Will asynchronously return the `Response` object on success or `Error` on error.
   public func signIn(
     from presentingViewController: UIViewController,
     with permissions: [Permission] = [.email, .publicProfile]) async throws -> Response

Sources/Google/GoogleAuthenticator.swift

@@ -22,7 +22,7 @@ public final class GoogleAuthenticator {
 extension GoogleAuthenticator: Authenticator {
   /// SignIn user.
   ///
-  /// Will asynchronously return the `Response` object on success or with `Error` on error.
+  /// Will asynchronously return the `Response` object on success or `Error` on error.
   public func signIn(from presentingViewController: UIViewController,
                      hint: String? = .none,
                      additionalScopes: [String]? = .none) async throws -> Response {

Sources/LinkedIn/LinkedInAuthenticator.swift

@@ -25,7 +25,7 @@ public final class LinkedInAuthenticator {
 extension LinkedInAuthenticator: Authenticator {
   /// SignIn user.
   ///
-  /// Will return promise with the `Response` object on success or with `Error` on error.
+  /// Will asynchronously return the `Response` object on success or `Error` on error.
   public func signIn(authCode: String, configuration: Configuration) async throws -> Response {
     let authRequest: LinkedInAPI.LinkedInAuthRequest = .init(
       code: authCode,