at the end of the page Getting Data about a Page - concrete5 Documentation the link to the conrete/core/page/page api reference do not work it goes on https://documentation.concretecms.org/api/class-Concrete.Core.Page.Page.html instead of Concrete\Core\Page\Page | ConcreteCMS API (i think)
Unfortunately, this is true for a lot of links in the documentation. We are systematically going through to correct them.
If you see one, you can click on the “edit” link under the title and to the right of the “author” (you only see this if you are logged in) and propose an edit. We review all edits for accuracy and appreciate the help!