Our theme is child theme compatible. You can use our example in the template archive. If you don’t know what a child theme is, just read following nice written wordpress documentation:
https://codex.wordpress.org/Child_Themes

  1. Upload Child Theme (first possibility is recommend)
    • Upload the archived file (pinpossible-child.zip) in the admin panel under Appearance -> Themes -> Add New -> Upload Theme
    • Upload the folder of the unarchived file (pinpossible-child.zip) per FTP into the /wp-content/themes/ folder
  2. Activate the Child-Theme
    • In the admin panel switch to Appearance -> Themes and activate your child theme