Update app.py

app.py

@@ -445,7 +445,7 @@ def launch_interface():
         # Extraction mode selection with explanatory text
         gr.Markdown(
             """
-            ## Extraction Mode  
+            ### PDF Text Extraction Mode  
             Choose whether to analyze all pages or a specific range of pages. If you want to exclude certain pages from the analysis, select "Range of Pages" and specify the start and end pages.
             """
         )
@@ -477,7 +477,7 @@ def launch_interface():
         with gr.Tab("Page-Level Analysis"):
             gr.Markdown(
                 """
-                ## 📄 Page-Level SDG Analysis  
+                ### 📄 Page-Level SDG Analysis  
                 This section conducts Sustainable Development Goals (SDG) mapping 
                 of documents using the [sdgBERT model](https://huggingface.co/sadickam/sdgBERT). 
                 It provides **high-level SDG mapping** of documents at the page level.
@@ -501,7 +501,7 @@ def launch_interface():
         with gr.Tab("Sentence-Level Analysis"):
             gr.Markdown(
                 """
-                ## ✍️ Sentence-Level SDG Analysis  
+                ### ✍️ Sentence-Level SDG Analysis  
                 This section conducts Sustainable Development Goals (SDG) mapping 
                 using the [sdgBERT model](https://huggingface.co/sadickam/sdgBERT). 
                 It provides **detailed SDG mapping** at the sentence level.