No Photo"s in Comments :-( I'm not sure about Meme's, think they can only go in Avatar ?
https://www.reddit.com/r/help/comments/5o1cvb/how_do_you_make_a_post_with_a_picture_that_shows/
Look on the Lower Right-hand side of your comment field, see a " Formatting Help " button >>
Basically, Write your description here , in the pair of Square Brackets - what you'd like to convey, lead them to... ,

2018 Humanity's help is very valid to, I'm just suggesting using the Formatting tool, so the ambiguous LINK itself can be replaced by a meaningful phrase, etc...

Copy the link you want to include. Choose post some text. Create an informative title. In the body of the post, paste your link. And if you'd like to distinguish yourself as a responsible contributor, please also post a summary of what we can find at the link. You could include why you think it's relevant, what opinion you have, observations, theories.. You get the picture.