Using the list of top-level pages on your website as a guide to understanding how your website works, there are several main components to comprehend:
Homepage & Our Approach pages
A great way to think of the Homepage and the Our Approach page is consider them as "parent containers" that house multiple secondary "child" sections. In general, each of these secondary child sections is managed as a subpage of it's respective parent page. Each secondary child section contains some content that you can customize, and most sections also contain a series of links to other pages on your website. Each of these links is set up as another tertiary child page of it's respective secondary parent section.
For more info on how to manage content on your Homepage or Our Approach pages, check out How to manage content and links on your homepage and How to manage content and links on your Our Approach page.
Our Impact page
The Our Impact page is set up as a blog page. For more on managing these pages, check out How to manage content and links on your Our Impact page.
Get Involved, Work Groups, Resources, and About links (do not appear in the list of top-level pages above, but do show up in your website's navigation menu)
These links in your navigation menu will bring you to their respective sections on the homepage. Each is set up as secondary "child" section of the homepage (see above).
Donate page and other pages on your website.
For organization purposes, all of the other pages on your website are setup as subpages of "Content & Other Pages". This is where you will find your Donate page, as well as all of the other pages that you've created links to on the Homepage and Our Approach pages (see above). Remember, if you update a slug or remove a page from this section, be sure to also update all of the links to this page throughout the rest of your website (i.e. on the Homepage or Our Approach pages).
This section contains the documentation provided for your custom website & theme.