To edit a sub-category:
1. Go to the admin portal of your marketplace (i.e. https://yourmarketplacename.arcadier.io/admin)
2. Log in using your credentials
3. Click on "Configuration", then "Categories"
4. Click on the notepad logo beside the sub-category you wish to edit
5. In the pop-up, you may edit the sub-category name and image
6. Click on the "Save" button to save your updates