In Desk KB article, how do include an image in a numbered list without using a number or bullet?

In Desk KB article, how do include an image in a numbered list without using a number or bullet?

We need to include images in our KBA steps as a numbered list.

Here I have numbered steps. I want the image no numbering or bullet. 
  1. Open Purchase Order Entry.
  2. Select the mail icon: 
  3.  
  4. Select the Save button.
I see your own articles have images in number lists and they are not numbered.

How do I do that?