Update app.py

app.py

@@ -135,7 +135,7 @@ def create_readme(info, downloaded_files, link_civit=False, is_author=True, fold
     widget_content = ""
     for index, (prompt, image) in enumerate(zip(downloaded_files["imagePrompt"], downloaded_files["imageName"])):
         escaped_prompt = prompt.replace("'", "''")
-        widget_content += f"""- text: '{escaped_prompt}'
+        widget_content += f"""- text: '{escaped_prompt if escaped_prompt else ' ' }'
   output:
     url: >-
       {image}