Here you can read everything you need to start with pinion... how to install pinion and create the first pages.
unpack the downloaded zip-file and save the directory with all his subdirectories on your server or your local environment.
After the installation of pinion you will be asked if you want to create a new page. Click add page to create a new page. If you want to add more pages, type the desired url in your browser and confirm adding a new page with click on add page.
You can alternatively add new pages using the menu. Open the page-module (menu > modules > all > page) and click on the tab add page. Insert url (and optional title) and click save. Her you can also administrate your pages (delete, change, etc.)