1. Go to https://imgbb.com/
2. Drag your file into the window (or click ‘start uploading’ and choose your file)

3. The page will change to show your file

4. Press the ‘upload’ button
5. The page will change to show your image is uploaded

6. The URL in the address bar isn’t the one you need, neither is the one in the ‘Embed codes’
7. Click on the image, this will change to a new page
8. On the new page, right-click the image and select ‘Copy image address’ (or similar depending on browser)

You can now paste this URL into the notebook as your image address.