Learn theme support one default taxonomy of gohugo: the tag feature.
Just add tags to any page:
---
date: 2018-11-29T08:41:44+01:00
title: Theme tutorial
weight: 15
tags: ["tutorial", "theme"]
---
The tags are displayed at the top of the page, in their insertion order.
Each tag is a link to a Taxonomy page displaying all the articles with the given tag.
In the config.toml file you can add a shortcut to display all the tags
[[menu.shortcuts]]
name = "<i class='fas fa-tags'></i> Tags"
url = "/tags"
weight = 30