As with several other WordPress settings pages, there isn’t much to change here. The permalinks settings page allows you to control how your web page URL’s will be structured. I always choose “Post name”. As you can see in the screenshot below, this simply shows your page address as your site name, forward slash (/), and title of your post or page. Other common structures include some form of the date in the URL structure. I have chosen to use post name only as most of my content is not based on time. If you were running a site based on current events you may want to use a date format in your URL to give your readers a hint as to the age of the post. If your site content is not date sensitive, then you probably don’t want to use a date structure. Using a date may imply that the page content is outdated and may cause the reader to move on from that page.
You can find the WordPress Codex on permalinks settings here.