ordering:

• meta
• 1.-introduction
• 1a.-administration
• 2.-user-interface
• 3.-getting-started
• 4.-satellite-imagery
• 5.-pavements
• 6.-taxiways
• 7.-start-locations
• 8.-buildings-and-facades
• 9.-objects
• 10.-airport-gates
• 11.-review-and-release
• 11a.-reviewers
• 12.-summary