Update app.py

app.py

@@ -43,4 +43,4 @@ def home():
     return render_template_string(html_content)
 
 if __name__ == '__main__':
-    app.run(debug=True,host=0.0.0.0, port=7860)
+    app.run(debug=True,host='0.0.0.0', port=7860)