The easiest way is to upload a screenshot to a site like imgbb.com, Then all you need to do is to locate the screenshot in your album, open it, then right-click and select "Copy image address"
Then all you need to do is to select "insert image" in the text editor here. If you have done it right, your image should pop up beneath the text like this: https://i.ibb.co/BP8X7zD/Prime-Agent.jpg


