Updated README

README.md

@@ -58,7 +58,9 @@ Using the following scripts, you can try the RAG models:
 
 Both systems use embedding-based retriever since is the best performing retrieval model. 
 The output/response is a set of IRIs representing images and a textual description generated by the LLM 
-that gives a short explanation about the generated images.
+that gives a short explanation about the selected images. To execute the scripts you will need the LLM and embedding 
+services enabled. The services are hosted in the servers provided by the Paderborn University and is
+out of the scope of this repository because it requires permission from responsible parties at the university to enable.
 
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