Added deprecation notice (#99)

* Added deprecation notice

README.md

@@ -1,4 +1,4 @@
-# iOS Auto Provision with App Store Connect API
+# iOS Auto Provision with App Store Connect API (Deprecated)
 
 [![Step changelog](https://shields.io/github/v/release/bitrise-steplib/steps-ios-auto-provision-appstoreconnect?include_prereleases&label=changelog&color=blueviolet)](https://github.com/bitrise-steplib/steps-ios-auto-provision-appstoreconnect/releases)
 
@@ -7,6 +7,18 @@ Automatically manages your iOS Provisioning Profiles for your Xcode project.
 <details>
 <summary>Description</summary>
 
+### This Step has been deprecated in favour of the new automatic code signing options on Bitrise.
+You can read more about these changes in our blog post: [https://blog.bitrise.io/post/simplifying-automatic-code-signing-on-bitrise](https://blog.bitrise.io/post/simplifying-automatic-code-signing-on-bitrise).
+
+#### Option A)
+The latest versions of the [Xcode Archive & Export for iOS](https://www.bitrise.io/integrations/steps/xcode-archive), [Xcode Build for testing for iOS](https://www.bitrise.io/integrations/steps/xcode-build-for-test), and the [Export iOS and tvOS Xcode archive](https://www.bitrise.io/integrations/steps/xcode-archive) Steps have built-in automatic code signing.
+We recommend removing this Step from your Workflow and using the automatic code signing feature in the Steps mentioned above.
+
+#### Option B)
+If you are not using any of the mentioned Xcode Steps, then you can replace
+this iOS Auto Provision Step with the [Manage iOS Code signing](https://www.bitrise.io/integrations/steps/manage-ios-code-signing) Step.
+
+### Description
 The Step uses the official [App Store Connect API](https://developer.apple.com/documentation/appstoreconnectapi/generating_tokens_for_api_requests). The Step can obtain the API connection information in 2 ways:
 It can use either the Bitrise Apple Developer connection selected under the **Team** tab for the application, or you can provide the information to the Step using Step's input variables.
 The Steps performs the following:

main.go

@@ -40,6 +40,24 @@ func main() {
 	logger.EnableDebugLog(cfg.VerboseLog)
 	v1log.SetEnableDebugLog(cfg.VerboseLog) // for compatibility
 
+	logger.Warnf(`
+This Step has been deprecated in favour of the new automatic code signing options on Bitrise.
+
+Option A)
+The latest versions of the [Xcode Archive & Export for iOS](https://www.bitrise.io/integrations/steps/xcode-archive),
+[Xcode Build for testing for iOS](https://www.bitrise.io/integrations/steps/xcode-build-for-test),
+and the [Export iOS and tvOS Xcode archive](https://www.bitrise.io/integrations/steps/xcode-archive) Steps
+have built-in automatic code signing.
+We recommend removing this Step from your Workflow and using the automatic code signing feature in the Steps mentioned above.
+
+Option B)
+If you are not using any of the mentioned Xcode Steps, then you can replace this iOS Auto Provision Step with
+the [Manage iOS Code signing](https://www.bitrise.io/integrations/steps/manage-ios-code-signing) Step.
+
+You can read more about these changes in our blog post:
+https://blog.bitrise.io/post/simplifying-automatic-code-signing-on-bitrise
+`)
+
 	certsWithPrivateKey, err := cfg.Certificates()
 	if err != nil {
 		failf("Failed to convert certificate URLs: %s", err)

step.yml

@@ -1,6 +1,18 @@
-title: iOS Auto Provision with App Store Connect API
+title: iOS Auto Provision with App Store Connect API (Deprecated)
 summary: Automatically manages your iOS Provisioning Profiles for your Xcode project.
 description: |-
+  ### This Step has been deprecated in favour of the new automatic code signing options on Bitrise.
+  You can read more about these changes in our blog post: [https://blog.bitrise.io/post/simplifying-automatic-code-signing-on-bitrise](https://blog.bitrise.io/post/simplifying-automatic-code-signing-on-bitrise).
+
+  #### Option A)
+  The latest versions of the [Xcode Archive & Export for iOS](https://www.bitrise.io/integrations/steps/xcode-archive), [Xcode Build for testing for iOS](https://www.bitrise.io/integrations/steps/xcode-build-for-test), and the [Export iOS and tvOS Xcode archive](https://www.bitrise.io/integrations/steps/xcode-archive) Steps have built-in automatic code signing.
+  We recommend removing this Step from your Workflow and using the automatic code signing feature in the Steps mentioned above.
+
+  #### Option B)
+  If you are not using any of the mentioned Xcode Steps, then you can replace
+  this iOS Auto Provision Step with the [Manage iOS Code signing](https://www.bitrise.io/integrations/steps/manage-ios-code-signing) Step.
+
+  ### Description
   The Step uses the official [App Store Connect API](https://developer.apple.com/documentation/appstoreconnectapi/generating_tokens_for_api_requests). The Step can obtain the API connection information in 2 ways:
   It can use either the Bitrise Apple Developer connection selected under the **Team** tab for the application, or you can provide the information to the Step using Step's input variables.
   The Steps performs the following: