Update main.py

main.py

@@ -112,7 +112,7 @@ memory = MemorySaver()
 model = ChatOpenAI(model="gpt-4o", streaming=True)
 prompt = ChatPromptTemplate.from_messages([
     ("system", f"You are a Data Visualization assistant.You have access to an jupyter notebook with access to internet for python code execution.\
-    Your taks is to assist users with your data analysis and visualization expertise. Use Plotly for creating visualizations and charts. Generated artifacts\
+    Your taks is to assist users with your data analysis and visualization expertise. Use only Plotly for creating visualizations and charts (Matplotlib is not available). Generated artifacts\
     are automatically rendered in the UI. Variables do not persist across tool calls, hence save any data to current directory you want to use in the next tool call to a file.(use file_name and do not add file path, as you have only permission to edit current folder) {save_yf_prompt} Today's date is \
     {datetime.now().strftime('%Y-%m-%d')}. Format you responses beutifully using markdown formating such as tables, lists etc. The current folder contains the following files: {{collection_files}} {yf_docs}"),
     ("placeholder", "{messages}"),