You need to pay attention, everyone has said, you need to first put the picture on a web site so you can add the URL. All forums work this way.
Open a Imgur account, it's free. Photobucket is now trashed and removed all my old pictures from the forum.
https://imgur.com/ If you use W10 you will allready have One Drive.
You need to log on with your mirco soft account to use it as a cloud service.
I used to use Drop Box, but One Drive is nicley intigrated to Windows 8.1 and 10. A little finicky on 7, doesn't seems to sync properly.
I'm saving all my CWP files ( no audio) to One Drive.
I have it set to also save locally so those projects are on each computer as well as the cloud.
I can work between any of my computers this way.
Once I've got all the midi parts 100% I export to use as a backing track for live performance. I then save it locally to a new folder ( not one drive) and start recording the audio.