"To summarize the article" means to provide a brief and concise overview or recap of the main points, ideas, or information presented in the article. Full definition
I'm not going to read the whole article, but I will read the whole introduction and then summarize the article for you. (scientificamerican.com)
These emails would link, summarize articles about new trends in design, explain A / B testing, talk about new ways to handle content marketing, etc.. (lessaccounting.com)
For instance, the first example is showing students how to summarize an article using a graphic organizer. (edutopia.org)