Update app.py

app.py

@@ -547,7 +547,7 @@ with gr.Blocks(title=TITLE) as demo:
                     label="Tag Substitutes",
                     interactive=True,
                 )
-                add_sub_row_btn = gr.Button("➕ Add substitute", scale=0)
+                    add_sub_row_btn = gr.Button("➕ Add substitute", scale=0)
         
             gr.Markdown("### Tag Exclusions")
             gr.Markdown(
@@ -564,7 +564,7 @@ with gr.Blocks(title=TITLE) as demo:
                     label="Tag Exclusions",
                     interactive=True,
                 )
-                add_ex_row_btn = gr.Button("➕ Add exclusion", scale=0)
+                    add_ex_row_btn = gr.Button("➕ Add exclusion", scale=0)
 
                 add_sub_row_btn.click(
                     fn=add_substitute_row,