📝 Updated documentation and example

Author: Guldem

README.md

@@ -50,7 +50,7 @@ Example:
   final chopperClient = ChopperClient(
     baseUrl: Uri.parse('https://example.com'),
     interceptors: [
-      oauthChopper.interceptor,
+      oauthChopper.interceptor(),
     ],
   );
 

example/oauth_chopper_example.dart

@@ -20,9 +20,8 @@ void main() {
   /// Add the oauth authenticator and interceptor to the chopper client.
   final chopperClient = ChopperClient(
     baseUrl: Uri.parse('https://example.com'),
-    authenticator: oauthChopper.authenticator(),
     interceptors: [
-      oauthChopper.interceptor,
+      oauthChopper.interceptor(),
     ],
   );
 

lib/src/oauth_chopper.dart

@@ -65,6 +65,8 @@ class OAuthChopper {
   }
 
   /// Provides an [OAuthInterceptor] instance.
+  /// If [onError] is provided exceptions will be passed to [onError] and not be
+  /// thrown.
   OAuthInterceptor interceptor({
     OnErrorCallback? onError,
   }) =>