Lede or Lead
The lede or lead of an article is simply the introduction. It may be the first paragraph or multiple paragraphs, but it sets up the article or blog post. Common approaches include starting the story with an anecdote that illustrates the theme of the story, statistics that drive a point home or a straightforward news introduction (XYZ Company bought ABC Company today in a $4 billion deal.).
And yes, many journalists will spell it "lede."