Copying an "item link" and pasting into a Markdown doc should create "a proper link"

Maybe I didn’t explain my workflow clearly. I don’t drop and paste images from outside DT. All my images are auto imported to Global Inbox.

When they are in DT, I will copy their “item link” and paste them into Markdown doc. All the images will then be moved to a central location/DB.

Will a service or quick action like below is possible to add the ‘!’ exclamation mark?