For APP Settings, add the app description for the About APP section. Click on Settings link available in the left sidebar. The sub-links appear.
Click on APP Information link. More options appear as internal links. Click on About link. The About page appears.
In Description, write the description as required. You can see the text editor for basic text formatting such as to make text bold, underline the text, change the text font size, to add an external link, and so on.
Click on Submit button to save the details.