You can add a draft article to a series before publishing or edit an already published article, adding the article to a series.
Note: The series should have already been created; learn how to create a series here
Add draft article to a series
In the process of publishing the article, navigate to the "Add to a series" section in the sidebar and select the series you want to publish the article to from the dropdown.
Add published articles to a series.
Navigate to your dashboard and access the Articles tab to find all your articles. You can then edit the article and add your desired series to that article before republishing.
Your article will now be part of the series. Here's an example of what a Series looks like on Hashnode blogs.
