You can add sorting to your HTML tables in guide using the Jquery TableSorter plug-in. Although this script includes many options and customizations, only basic sorting is described below for simplicity.
I used the download and documentation provided on the following site: Sorting Tables with Tablesorter. There are many other resources as well. Review the documentation and download the tablesorter-master.zip.
Now you can modify your Help Center.
First, edit your theme and add the following plug-in assets: