Posts are stored in the `_posts` directory and named according to the `YEAR-MONTH-DAY-title.MARKUP` format as per [the usual](https://jekyllrb.com/docs/posts/).
Where `YEAR` is a four-digit number, `MONTH` and `DAY` are both two-digit numbers, and `MARKUP` is the file extension representing the format used in the file. For example, the following are examples of valid post filenames:
Adding the above to `_config.yml` will assign the `single` layout and enable: *author profile*, *reading time*, *comments*, [*social sharing links*]({{ "/docs/layouts/#social-sharing-links" | relative_url }}), and *related posts*, for all posts.