An appreciation of this section will be much more effective if you have at least a small amount of content created so to that end let's create a couple of items of content with some lorem ipsum filler text and tag them with some makeshift keywords.

Don't concern yourself with the fine detail here, just follow the steps as follows:

Click on the Shortcuts button in the Toolbar and choose Add content.

Next, click on Article to create a new article and enter a Title for the article, some filler text for the Body, and add a couple of tags: 'tag1' and 'tag2'.

Finally, click on Save and publish at the bottom of the screen to publish the article.

You'll be taken to the default view of article with a comment form directly underneath.

Repeat the same steps again for Article no. 2 and this time, tag the article with tag1 and tag2 as before but also add a couple of more tags such as tag3 and tag4:

You should end up with at least two Articles of content on your new site, two of which share at least two tags.

Try clicking on the tag links for Article no. 2, to see the effect of this basic tagging.