[8.14] [Request][ESS][8.14] Update docs to convey release state of AI…

… Assistant's ES|QL-query-generating functionality (backport #5105) (#5192)

(cherry picked from commit fceef4c)

Co-authored-by: Nastasha Solomon <[email protected]>

docs/assistant/security-assistant.asciidoc

@@ -177,13 +177,16 @@ The *Show anonymized* toggle controls whether you see the obfuscated or plaintex
 [discrete]
 [[ai-assistant-knowledge-base]]
 === Knowledge base
-beta::["Do not use {esql} on production environments. This functionality is in beta and is subject to change. The design and code is less mature than official GA features and is being provided as-is with no warranties. Beta features are not subject to the support SLA of official GA features."]
+beta::[]
 
 The **Knowledge base** tab of the AI Assistant settings menu allows you to enable AI Assistant to answer questions about the Elastic Search Query Language ({esql}), and about alerts in your environment.
 
 [discrete]
 [[rag-for-esql]]
 ==== Knowledge base for {esql}
+
+IMPORTANT: {esql} queries generated by AI Assistant might require additional validation. To ensure they're correct, refer to the {ref}/esql-language.html[{esql} documentation]. 
+
 When this feature is enabled, AI Assistant can help you write an {esql} query for a particular use case, or answer general questions about {esql} syntax and usage. To enable AI Assistant to answer questions about {esql}:
 
 . Enable the Elastic Learned Sparse EncodeR (ELSER). This model provides additional context to the third-party LLM. To learn more, refer to {ml-docs}/ml-nlp-elser.html#download-deploy-elser[Configure ELSER].