This is the first picture I found on Imgur.
I’ve said it before but if you click the quote button on a post where someone’s done what you want to do you’ll see exactly how they did it.
To get an image’s location right-click on it and select “copy image location” or if you don’t have that option “open link in new tab” and copy the url out of the address bar of said tab. On an Android you hold down your finger on the image until the option to open in a new tab appears. On an IPhone or iPad do the same but select “Share”, then “copy” from the little pop up.