docs: 21milion passages real time

.gitignore

@@ -0,0 +1 @@
+.hypothesis

app.py

@@ -17,6 +17,7 @@ st.header(TITLE)
 st.markdown('''
 <h6>Ask short-answer question that can be find in Wikipedia data.</h6>
 ''', unsafe_allow_html=True)
+st.markdown('This demo retrieves the original context from 21,000,000 wikipedia passages in real-time')
 
 
 @st.cache_resource