[1] Highlight standout journalism - ニュース ヘルプ ( 版) https://support.google.com/news/publisher/answer/191283

For example, if you wanted to highlight an exclusive, breaking story from The Example Times, you would implement the following code on that story's page:

<head>

...

<link rel="standout"

href="http://www.example.com/breaking_exclusive_story_2314"/>

</head>

Or, you could use a meta tag:

<head>

...

<meta name="standout"

content="http://www.example.com/breaking_exclusive_story_2314"/>

</head>