Pelican uses file metadata from your articles and pages text files to get information about your posts, like tags, authors etc.
On top of “official” metadata, Elegant uses some optional metadata that you can use in your articles and pages.
summaryused for Search Engine Optimization
subtitleused to set article subtitle
keywordsused for Search Engine Optimization
modifiedused to set last updated time of the article
featured_imageused for Social Media Optimization
comments_introused with comments
comment_idused with comments