Change check for article.modified which is no longer needed after change in Pelican (>3.3) code
Change check for article.modified which is no longer needed after change in Pelican (>3.3) code

See these discussions

https://github.com/getpelican/pelican/pull/1161
https://github.com/getpelican/pelican/pull/1148

Goclis/pelican-blog,Goclis/pelican-blog,Goclis/pelican-blog,Goclis/pelican-blog