Update wrap-how-to.md

Author: makolomi

powerapps-docs/maker/common/wrap/wrap-how-to.md

@@ -262,4 +262,5 @@ You can automatically sign your mobile app package during wrap process in **Step
 - [Code sign for iOS](code-sign-ios.md)
 - [Code sign for Android](code-sign-android.md)
 - [Code sign for Google Play Store](https://developer.android.com/studio/publish/app-signing)
+- [Create your Azure key vault for automated code signing](create-key-vault-for-code-signing.md)
 - [Frequently asked questions for wrap](faq.yml)