Update app.py

app.py

@@ -384,7 +384,11 @@ st.markdown("---")
 # About section with enhanced explanations
 st.markdown("""
 ### About this app
-This application uses a Retrieval-Augmented Generation (RAG) system to answer questions about spirituality based on insights from Indian spiritual texts. It searches through a database of texts to find relevant passages and generates answers based on those passages.
+This application uses a Retrieval-Augmented Generation (RAG) system to answer questions about spirituality based on insights from Indian 
+spiritual texts. It searches through a database of texts to find relevant passages and generates answers based on those passages. 
+
+Techical Information (Optional): TThe RAG pipeline is powered by an underlying large embedding model that converts texts into searchable 
+vector representations (using FAISS indices) and a Large Language Model (LLM) that summarizes and presents the findings of the system.
 
 **Important to note:**
 - This is not a general chatbot. It is specifically designed to answer spiritual questions based on referenced texts, as against generating historical information or reproducing stories of saints or spiritual leaders.