fix small error on pptx loader

Author: Ahmath-Gadji

openrag/components/indexer/loaders/pptx_loader.py

@@ -54,7 +54,7 @@ def convert(self, local_path):
                         html_table += "</tr>"
                         first_row = False
                     html_table += "</table></body></html>"
-                    md_content += "\n" + convert(html_table).text_content.strip() + "\n"
+                    md_content += "\n" + convert(html_table).strip() + "\n"
 
                 # Charts
                 if shape.has_chart: