API Gateway Docs - Setup instructions appear before the Quick Start

[nuwand]

See screenshot below. The Setup menu is misplaced. The Quick Start doc should come right after the Overview.

The content within the Setup doc is about complicated architectural details of the Gateway. It should be place somewhere towards the bottom of the API Gateway section.

[Skynettheone]

I'd like to work on this. Found the root cause: in en/mkdocs.yml, the API Gateway 1.1.0 nav section lists Setup before Quick Start Guide, unlike the 'next' version's nav which already has the correct order (Overview, Quick Start Guide, Setup, Policies, ...). I'll submit a PR reordering the 1.1.0 section to match.