Update app.py

app.py

@@ -142,7 +142,8 @@ def read_file_content(file,max_length):
         return ""
 
 def main():
-
+    
+    st.title('Chat Toolkit')
     api_key = st.text_input("Enter OpenAI API Key:", type='password')
     if api_key:
         openai.api_key = api_key
@@ -216,6 +217,12 @@ def main():
                 
     else:
             st.error("Please provide the OpenAI API Key either through the input box or set the OPENAI_KEY environment variable.")
+            left_col, center_col, right_col = st.columns([1, 6, 1])
+        
+            with center_col:
+                st.title('Chat Toolkit')
+                st.warning('Please enter your OpenAI API key in the left sidebar.')
+                st.image('ai2.png', use_column_width=True)
             
 if __name__ == "__main__":
     main()