5. Child Theme

If you want to make changes to the theme's files and functions, we strongly recommend installing a child theme. This ensures that your theme customizations stay in place after the theme update. A child theme lets you modify a parent theme as much (or as little) as you want.

Here’s how you install a child theme:

Step 1: From WordPress left menu, go to Dashboard > Appearance > Themes.

Step 2: Click on Add New Theme.

Step 3: Click on Upload Theme button.

Step 4: Click on Choose File button and select bizix-child-theme.zip file, then click on Install Now button and wait for the install to complete.

Step 5: After the child theme installed successfully, click on the Activate button.

For further reference about the child themes, please read the WordPress documentation located at http://codex.wordpress.org.