update ui

app.py

@@ -77,10 +77,8 @@ css = """
 
 title = """
 <div style="text-align: center;max-width: 700px;">
-    <h1>Chat with PDF • OpenAI</h1>
-    <p style="text-align: center;">Upload a .PDF from your computer, click the "Load PDF to LangChain" button, <br />
-    when everything is ready, you can start asking questions about the pdf ;) <br />
-    This version is set to store chat history, and uses OpenAI as LLM, don't forget to copy/paste your OpenAI API key</p>
+    <h1>Chat with Yingxu</h1>
+    <p style="text-align: center;">Free feel to talk about anything :)</p>
 </div>
 """