Add instructions to customise app for an AWS account (#38)

* add instructions to customize the app for another AWS account

Author: sebsto

Examples/ios-math-solver/README.md

@@ -2,6 +2,18 @@
 
 An iOS application that uses AWS Bedrock and Claude to solve math and physics problems from images.
 
+## TODO: add your AWS account detail 
+
+Before compiling or running this app, you must 
+
+- Configure SignIn With Apple on your Apple developer account.
+- Configure an IAM Identity Provider for SignIn With Apple and this application bundle.
+- Create an AWS IAM role that has the necessary permissions to access AWS Bedrock.
+- Replace the placeholder values in `changeme.swift` with your actual AWS account detail and IAM role name.
+- Enable the access to Amazon Bedrock models in the Bedrock console.
+
+See [AWS Documentation](https://docs.aws.amazon.com/sdk-for-swift/latest/developer-guide/apple-integration.html#apple-sign-in) for more information.
+
 ## Features
 
 - Take a photo or select an image from your photo library

Examples/ios-math-solver/Sources/MathSolverViewModel.swift

@@ -33,11 +33,6 @@ final class MathSolverViewModel: ObservableObject, @unchecked Sendable {
     /// Reference to the authentication manager
     private weak var authManager: AuthenticationManager?
 
-    // to integrate with Sign In With Apple (SIWA), you must prepare your AWS account
-    // Follow instructions at https://docs.aws.amazon.com/sdk-for-swift/latest/developer-guide/apple-integration.html#apple-sign-in
-
-    private let awsAccountNumber = "486652066693"  // TODO: Replace with your AWS account number
-    private let awsIAMRoleName = "ios-swift-bedrock"  // TODO: Replace with your IAM role name
     private var logger = Logger(label: "MathSolverViewModel")
 
     /// Sets the authentication manager and initializes the Bedrock client

Examples/ios-math-solver/Sources/changeme.swift

@@ -0,0 +1,20 @@
+//===----------------------------------------------------------------------===//
+//
+// This source file is part of the Swift Bedrock Library open source project
+//
+// Copyright (c) 2025 Amazon.com, Inc. or its affiliates
+//                    and the Swift Bedrock Library project authors
+// Licensed under Apache License v2.0
+//
+// See LICENSE.txt for license information
+// See CONTRIBUTORS.txt for the list of Swift Bedrock Library project authors
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+//===----------------------------------------------------------------------===//
+
+// to integrate with Sign In With Apple (SIWA), you must prepare your AWS account
+// Follow instructions at https://docs.aws.amazon.com/sdk-for-swift/latest/developer-guide/apple-integration.html#apple-sign-in
+
+private let awsAccountNumber = "0000000000"  // TODO: Replace with your AWS account number
+private let awsIAMRoleName = "your-iam-ios-swift-bedrock-role-name"  // TODO: Replace with your IAM role name