Update app.py

app.py

@@ -13,7 +13,7 @@ INDEX_FILE = "faiss_index.pkl"
 DOCS_FILE = "contexts.pkl"
 
 # Set up Groq client
-client = Groq(api_key="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")
+client = Groq(api_key=os.environ.get("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"))
 
 # UI
 st.set_page_config(page_title="RAG App with Groq", layout="wide")