[SOLVED] put screenshot into post?

When your composing your post look at the Images link for help.  It's just at the top right of the box where you typed your text.

Steps:

1. Upload you picture online some where.

2. Paste the forum BBCode link into your post.  E.g.

[img]URL to your picture here[/img]

Thanks,
Mike

P.S. Also by editing the initial post and adding [SOLVED] at the start of the topic subject, you will help others searching for similar issues.

P.P.S. It looks like this:

Why doesn't this work for me?
I saw the help. And now, obviously I see this thread and I see its image. Moreover @reddogg was happy and marked the topic as solved.
But when I do the same thing, the preview just shows me the BBCode (bracket img bracket etc.). What am I missing?
I was trying with a .jpeg, I am using the latest Firefox on Ubuntu 18.

Okay, @mfleetwo, I edited the post in "[SOLVED] GParted sees partiton as 100% full but it's not", even though it's solved, for the sake of the experiment.
Of course I understand that a URL such as file:///home/michael/Pictures/gparted.jpeg refers to the local host. But such is the case while doing the post/edit/reply and I was hoping that the function would upload my local files. I don't have any web site of my own to host these pictures permanently. How do the others do it?