Markdown test

app.py

@@ -60,7 +60,13 @@ chain = load_chain()
 # From here down is all the StreamLit UI.
 st.set_page_config(page_title="Impromptu GPT", page_icon=":robot:")
 st.header("Impromptu GPT")
-st.subhead("A Question-Answering demo using OpenAI, Langchain, Pinecone, Streamlit.")
+st.subheader("A LangChain demo")
+
+'''
+### LangChain: SelfQueryRetriever + RetrievalQA
+
+This is some _markdown_.
+'''
 
 if "generated" not in st.session_state:
     st.session_state["generated"] = []