Fix broken link to question-answering overview

Author: msmbaldwin

articles/security/fundamentals/encryption-customer-managed-keys-support.md

@@ -34,7 +34,7 @@ The following services support server-side encryption with customer managed keys
 | [Language Understanding](/azure/ai-services/luis/what-is-luis) | Yes | Yes | [Customer-managed keys with Azure Key Vault](/azure/ai-services/luis/encrypt-data-at-rest) |
 | [Personalizer](/azure/ai-services/personalizer/) | Yes | Yes | [Encryption of data at rest in Personalizer](/azure/ai-services/personalizer/encrypt-data-at-rest) |
 | [Power Platform](/power-platform/) | Yes | Yes | [Customer-managed keys in Power Platform](/power-platform/admin/customer-managed-key) |
-| [Custom question answering](/azure/ai-services/language-service/question-answering/) | Yes | | [Custom question answering encryption of data at rest](/azure/ai-services/language-service/question-answering/how-to/encrypt-data-at-rest) |
+| [Custom question answering](/azure/ai-services/language-service/question-answering/overview) | Yes | | [Custom question answering encryption of data at rest](/azure/ai-services/language-service/question-answering/how-to/encrypt-data-at-rest) |
 | [QnA Maker](/azure/ai-services/qnamaker/) | Yes | Yes | [QnA Maker encryption of data at rest](/azure/ai-services/qnamaker/encrypt-data-at-rest) |
 | [Speech Services](/azure/ai-services/speech-service/) | Yes | Yes | [Speech service encryption of data at rest](/azure/ai-services/speech-service/speech-encryption-of-data-at-rest) |
 | [Translator Text](/azure/ai-services/translator/) | Yes | Yes | [Translator encryption of data at rest](/azure/ai-services/translator/encrypt-data-at-rest) |