I just pasted this response in from another thread where I originally answered someone else. Sorry about the BOLD - that came from searching and I can't get rid of it. HTH.
To add a link:
Go to your gallery and click on the card you want to link -
Once you have the card on your screen go to the address bar at the top of your screen and highlight the address by clicking on it.
Then click on Edit at the top of your tool bar and you will get a pull down menu - click on copy.
Now type in your post in the thread and click on Edit again and this time select "paste" and there's your link.
Sorry if my explanation is too simplistic. When I first learned how to do it I needed it broken down step by step
Does running late count as exercise?