Update rag_chain/chain.py

rag_chain/chain.py

@@ -147,7 +147,7 @@ def get_rag_chain(model_name: str = "gpt-4", temperature: float = 0.2) -> tuple[
         similarity_threshold=0.5
     )
 
-    # Set conversation history window memory. It only uses the last k=4 interactions.
+    # Set conversation history window memory. It only uses the last K interactions.
     memory = ConversationBufferWindowMemory(memory_key="history",
                                             return_messages=True,
                                             k=5)