When paste an image from clipboard you will see something like this:

![image.png](attachment:image.png)

You shouldn't change the syntax when you paste the image in markdown. Instead, you should add div before and after that. The best solution that I found in this link is that:

<div style="max-width:500px;margin-right: auto; margin-right: 0;">
    
![image.png](attachment:image.png)
    
</div>

This works fine.