Get the link from Youtube
Step 1: Click on share
Step 2: Click on Embed
Step 3: Copy the link inside of src=" "
Uploading the selected video link into Prismic
Step 1: Click on "Select a link"
Step 2: Choose "Link to the Web..."
Step 3: Insert the link from Youtube
Step 4: Click on the button "Link to this page"
Step 5: Choose a cover image for the video