If you are planning on doing any modifications to a theme, it is highly recommended to use a child theme. Child themes allow you to easily make modifications to a theme that will not be overwritten if you update the parent theme. When future releases of Homely become available, you can update without a worry.
To install the child theme, refer to the same process described above for uploading the parent theme. Once the child theme is installed, you should see both the Homely parent and child themes. Hover over the child theme and click Activate.