datat.fi/docs/_posts/2010-01-07-post-modified.md

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Post Formats
2017-03-09T13:01:27-05:00
Post Formats
readability
standard
Post: Modified Date

This post has been updated and should show a modified date if last_modified_at is used in the layout.

Plugins like jekyll-sitemap use this field to add a <lastmod> tag your sitemap.xml.