I saw this image in this answer, what is the notification with the orange background in the right top corner for?
It means there is 1 review waiting for me that is related to "suggested edits".
This example shows what is shown when I clicked the orange 1:
Down the image there is a compare between old and new (not included) with the name of the editor. The buttons to the right let me aprove or reject it or I can improve it or skip it.