How do I edit an existing category's description?
Click on the 'Categories' link under the 'Inventory' heading in the Control Panel menu.
Step Two: Edit a Category
From the categories list, find the category to edit description and click the 'Edit' icon in the Actions column on the right.
Step Three: Make updates
On the 'DETAILS' tab, edit the description of your category inside 'Category Description' textbox.
Step Five: Don't forget to save
When you are finished, scroll up/down & click the 'SAVE' button.