If you look at the top of the page this is the admin part of the page that needs to be saved separately if you change any part in this section. Note the save button under #2 in Green.
#1 is the name of your page and is set for you automatically, but you have complete control over what it is and you will find it very helpful later when you are trying to find a specific page if you can create a descriptive page title.
#2 is the Category. This helps you place your pages under the sections that they apply to which is necessary to do for your Kjrsos Guide to review the work that you have been doing.