Shrek Cat

I'm guessing you mean add meme to comment section you click Add meme at the bottom right and:
Click your meme,
if you want to upload your own meme click add image and drag over the meme
Once done click Generate

Then click post comment
It will post by itself

If you see none of this you might need more points:

That was a big help to the new community. Ty

Now it seems so simple lol

Thanks mate... i've been trying that but will give it another go now!