Update app file

app.py

@@ -20,12 +20,12 @@ st.title('P&ID Object Detection')
 st.subheader(' Identify valves and pumps with deep learning model ', divider='rainbow')
 st.caption('Developed by Deep Drawings Co.')
 
-col1, col2, col3 = st.columns([10, 10, 10])
-with col2:
+col1, col2, col3, col4 = st.columns(4)
+with col1:
     with st.expander('How to use it'):
         st.markdown(
         '''
-        1) Upload your P&ID or Select Test Diagrams 📬
+        1) Upload your P&ID or select example diagrams 📬
         2) Set Confidence Threshold 📈
         3) Press to Perform Inference 🚀
         4) Visualize Model Predictions 🔎
@@ -34,8 +34,8 @@ with col2:
 
 st.write('##')
     
-col1, col2, col3, col4, col5 = st.columns([8, 2, 8, 2, 8])
-with col1:
+col1, col2, col3, col4 = st.columns(4, gap='medium')
+with col2:
     st.markdown('##### Input File')
     # set input image by upload
     image_file = st.file_uploader("Upload your diagram", type=["pdf"])