fix: add tokenWs

main.py

@@ -78,7 +78,7 @@ You should only answer the topics that appear in these documents.
 Always answer in the most helpful and reliable way possible, if you don't know the answer to a question, just say you don't know, don't try to make up an answer,
 don't share false information. you should use no more than 15 sentences and all your answers should be as concise as possible.
 Always say "Thank you for asking!" at the end of your answer.
-Context: {context}
+Context: {history} \n {context}
 Question: {question}
 """
 
@@ -93,6 +93,7 @@ QA = RetrievalQA.from_chain_type(
     return_source_documents=SHOW_SOURCES,
     chain_type_kwargs={
         "prompt": QA_CHAIN_PROMPT,
+        "memory": memory
     },
 )