Clarify the section titles in the left-hand nav

[sarahmaddox]

I'm finding the left-hand navigation panel a little confusing:

• The top-level section title is “Section Nav”. That title didn't help me understand what the section contains, which is a list of the docs available.
  How about this as a title for the top section: Docs

• The second section title is “Contents”. I thought it meant the contents of the doc set, but the section actually lists the headings on the page.
  How about this as a title for the top section: On this page
  An alternative suggestion: Page contents

[amsaha]

Should it be Site Contents and Page Contents ?

[sarahmaddox]

I'd be concerned about "Site Contents", in that we may add other content to the site that's not part of the docs, whereas the left-hand nav includes only the docs.

[amsaha]

Good point.

[sarahmaddox]

I think we can close this issue now, since the navigation has been changed to fix issue #70. Now the page contents is on the right of the page, and is labelled "Contents". It's therefore clearer what "Section Nav" means on the left.