Every time you publish a new article (or post) to your store's blog, Shopify will generate a new page and URL for it. To access the settings for these pages, navigate to any blog post in the theme editor and then click Article pages under the Sections tab.
Show date published
This shows a date stamp at the top of your each article.
Show post author
This shows the post author's name at the top of each article (beside the date, if enabled).
Use share buttons
This appends a small series of social icons to the bottom of each of your posts, allowing readers to share your posts on Facebook, Twitter, and Pinterest.