Adding your keywords to the page header improve the visibility of your content by search engines. Here's how you can customize keywords in your Page settings.
1. Navigate to the Website menu.
2. Click on Pages... link.
3. From the list of your website pages, choose the one you plan to edit and click on the Gear icon to open Page Settings.
4. When you click on the Gear icon, a new window opens up. Here you can edit the Meta keywords.
the way it will be seen in search results.
Keywords are important because they help search engine bots understand your content better so you can rank higher for those keywords.
You can read more about Page settings in this tutorial.