I want to use a child theme. How can I do that?
If you want to use Mona Child Theme, please follow these steps:
1. First of all, make sure that parent theme folder is named: mona. Otherwise rename the folder.
2. You should be able to find the folder mona-child in the package you have downloaded from ThemeForest.
3. Please copy this folder to /wp-content/themes folder on your server.
4. Go to Appearance > Themes in your wp-admin console and activate child theme. Please have in mind that all required plugins need to be activated.