1. Go to the edit view of the guide you'd like to add an image to.
2. Click on REMOVE IMAGE next to the step you'd like to change the image for.
3. Click on "Drag 'n' drop a new screenshot here, or click to select one" and select the new image
4. Want to create a new step? Click on ADD below an existing step.
5. Click on STEP
6. If the new step has an image, you can remove it to upload a new image.
