Need better documentation for image selector button

[appsforartists]

Lens Blur photos are created by the G+ Camera, but if you upload a photo from the G+ Photos app, you'll get a "no XMP metadata found" error. The correct way to upload a photo is to

1. Visit the site on your Android
2. Tap the green Load Photo button
3. Select Documents as the upload picker
4. Choose Gallery in the sidebar
5. Tap the Camera folder
6. Select the photo you'd like to upload

This should be made more clear on the demo site.