Adding og-codes?

I'd like to promote an e-learning course via social media. From what I've heard you can use og-codes to make sharing and distribution easier and user friendly in Social media. You can post an image to social media with reference to the course. 

I've added a couple of codes to the html-heading of the course but it doesn't work. Is there something in the tool storyline making this impossible? How do I do thi? Is adding og-codes to html in a published storyline course not the way to go?

<meta property="og:url" content= “https://natutbildning.lo.se/introduktion” />
<meta property="og:image" content= “https://natutbildning.lo.se/introduktion/fack.png” />
<meta property="og:image:width" content="1080" />
<meta property="og:image:height" content="1080" />

Thanks for replies!

Bo