I have inserted three images in my superuser question - see revision 2.
The links were all inserted as
[![enter image description here]]. It seems to work fine, but I would expect simpler syntax
![enter image description here] and when I have edited it to such syntax, it still seems to work.
I was inserting them by clicking to Image button and copying an image from clipboard.
To keep the question self contained, I am adding a small image into this question as well.