Update app file

app.py

@@ -7,5 +7,17 @@ st.set_page_config(
 )
 
 st.title('P&ID Object Detection App')
-st.subheader('Helps to identify valves and pumps', divider='rainbow')
-st.caption('Developed by Deep Drawings Co.')
+st.subheader('Powerful tool to identify valves and pumps', divider='rainbow')
+st.caption('Developed by Deep Drawings Co.')
+
+st.write('##')
+
+with.st.expander("Usage"):
+    st.markdown(
+        '''
+        1. Upload your P&ID or select example drawings
+        2. Set confidence threshold
+        3. Press to perform prediction 🚀
+        4. Visualize output results
+        '''
+    )