use markdown

Signed-off-by: Lu Ken <ken.lu@intel.com>

app.py

@@ -78,8 +78,13 @@ def main():
 
     st.set_page_config("TDX Doctor")
     st.header("Please ask questions related to TDX or UEFI")
+    st.markdown("Ask a question like following styles:")
+    st.markdown("- please describe EFI PEI Core in 200 words.")
+    st.markdown("- please describe intel tdx in 200 words.")
+    st.markdown("- please explain SEAMCALL in 200 words.")
 
-    user_question = st.text_input("Ask a Question like:\n please describe EFI PEI Core in 200 words.\n please describe intel tdx in 200 words.\n please explain SEAMCALL in 200 words")
+
+    user_question = st.text_input("input", label_visibility="hidden")
     if user_question:
         user_input(user_question)