Also, use the syntax ![image description here](image link here) because it's cleaner to look at. I'd recommend an HTML method even more, but you'd have more trouble with that if you can't do the main one.
Also, do not remove the  or any other code that is generated by the image button. You need to keep the code because it's what the computer is checking for when you link an image. If it's not there, then your image will not load.