You can directly copy and paste your text from your doc here. OR you an use the WP Bakery page Builder to build a more complex layout with
rows and images.
To add this page ( new page to your menu)
Goto your Dashboard (left side)
Select a menu to edit: Main menu
Then look for the new page in the list of pages. Click on it to add it to the main.
It will add it to the bottom. Reposition it by dragging with mouse