Fixing Alt Text in Google Sites

1. Navigate to the page where the alt text error is occurring.
2. Click on the image.
   This will bring up a menu.
3. Click on the three vertical dots icon.
   This will bring up a secondary menu
4. Click on Alt text
5. Enter a short description of what is in the image
6. Click Apply

Decorative images

Decorative images are ones that don't provide any new information. They're often used to make a website more visually appealing or to accompany text that already contains the information the image depicts.

In this case, you will want to mark the image as decorate so screen readers ignore it. 

1. Navigate to the page where the alt text error is occurring.
2. Click on the image.
   This will bring up a menu.
3. Click on the three vertical dots icon.
   This will bring up a secondary menu
4. Click on Alt text
5. Check the box This is a decorative image
6. Click Apply