@joan-duszka Anytime you write or comment on a post, a screen opens that includes 10 icons across the top of the text input field. The sixth one over looks like a "picture". Click on that and some code pops into your text field: ![alt text](image url) If you fill it in, your image will be inserted into the text area. So, let's change "alt text" to "my dog, doodle" and put the online address of the image in place of "image url"... This should produce a link to a picture of my sweet dog sound asleep:
please note: I do not know what is causing the broken link image. The link seems to work.
The other way would be to upload the image from your device using the next to the last icon (#9). When you press that, you should be able to select an image from your computer files and upload it into place. Same photo (of my sleepy baby):
note: this seems to work best for desktops, rather than mobile phones.