Update RAG context enrichment documentation with enterprise plan requirements

Author: mrT23

docs/docs/core-abilities/rag_context_enrichment.md

@@ -2,6 +2,10 @@
 
 `Supported Git Platforms: GitHub`
 
+!!! info "Prerequisites"
+    - RAG is available only for Qodo enterprise plan users, with single tenant or on-premises setup.
+    - Database setup and codebase indexing must be completed before proceeding. [Contact support](https://www.qodo.ai/contact/) for more information.
+
 ## Overview
 
 ### What is RAG Context Enrichment?
@@ -14,9 +18,6 @@ Using Retrieval-Augmented Generation (RAG), it searches your configured reposito
 
 ## Getting started
 
-!!! info "Prerequisites"
-    - Database setup and codebase indexing must be completed before proceeding. [Contact support](https://www.qodo.ai/contact/) for assistance.
-
 ### Configuration options
 
 In order to enable the RAG feature, add the following lines to your configuration file: