# main links
main:
  #  - title: "Location"
  #    url: /_pages/location/
  #  - title: "Schedule"
  #    url: /_pages/schedule/
  #  - title: "Registration"
  #    url: /_pages/registration
   - title: "What is Mapping?"
     url: /_pages/what_is_mapping/
   - title: "Events"
     url: /_pages/events/
   - title: "Code of Conduct"
     url: /_pages/code_of_conduct/
   - title: "Green"
     url: /_pages/green/
   - title: "Slack"
     url: https://map-camp-slack-invite.herokuapp.com/
  #- title: "Sponsors"
  #   url: _pages/sponsors.html
  # - title: "About"
  #   url: https://mmistakes.github.io/minimal-mistakes/about/
  # - title: "Sitemap"
  #   url: /sitemap/

# main links
main:
  #  - title: "Location"
  #    url: /_pages/location/
  #  - title: "Schedule"
  #    url: /_pages/schedule/
  #  - title: "Registration"
  #    url: /_pages/registration
   - title: "What is Mapping?"
     url: /_pages/what_is_mapping/
   - title: "Events"
     url: /_pages/events/
   - title: "Code of Conduct"
     url: /_pages/code_of_conduct/
   # why is this yaml not working?
   - title: "Green"
     url: /_pages/green/
   - title: "Slack"
     url: https://map-camp-slack-invite.herokuapp.com/
  #- title: "Sponsors"
  #   url: _pages/sponsors.html
  # - title: "About"
  #   url: https://mmistakes.github.io/minimal-mistakes/about/
  # - title: "Sitemap"
  #   url: /sitemap/

Add green survey link in nav
Add green survey link in nav

I'm adding the changes to the navigation.yml, after running it through a yaml validator.

It' s not clear to me why this build failed, on gihtub, as it worked fine locally.