How do you put a image on a html doc. I now I start off with the tag <img> but what then.

Answer 1

use in this format: <img src=“url goes here” id=“optional”/>

Answer 2

First you find an image and copy its URL (a right mouse button click on a computer or a long tap on a phone should help). Paste into the src attribute. Save your code and refresh the page or click RUN in the Sololearn Playground. That should do.
You can use this code as a manual:
https://code.sololearn.com/WhmK5WE5bgSe/?ref=app

Answer 3

The url is the web or file location of your image.