Greasy fork 爱吃馍镜像

Markdown is not rendered inside of an HTML element "details".

I also utilize element "summary".

Reference: https://greasyfork.org/en/scripts/465932-newspaper-syndication-feed-reader

See https://github.com/greasyfork-org/greasyfork/issues/989

I will utilize XHTML, then.

Thank you.