Can anybody help me? Meta tags.

don't know exactly where to post it, so it goes to Lounge, sorry

i need some little help with Open Graph tags for my LP's (it helps to create proper thumbnails for social media)
as i understand, we should put these ones into our Header section, here is an example:

<head>
<title>The Rock (1996)</title>
<meta property="og:title" content="The Rock" />
<meta property="og:type" content="video.movie" />
<meta property="og:url"…

Can anybody help me? Meta tags.