Hello guys, this is possible by pasting an img tag into the editor window. See the GIF file I am attaching.
For example, just paste this text into the editor window:
<img src="https://upload.wikimedia.org/wikipedia/commons/thumb/e/e0/SNice.svg/1024px-SNice.svg.png" height="100 "width="100">
P.S. You might have to click on the image link above, the preview does not seem to work.