message: Fixes nav for /lite/models pages.
diff: @@ -94,29 +94,21 @@ upper_tabs:
  contents:
  - title: "Overview"
  path: /lite/models/
  - - title: "Image classification"
  - section:
  + - heading: "Image classification"
  - title: "Overview"
  path: /lite/models/image_classification/overview
  - title: "Android"
  path: /lite/models/image_classification/android
  - title: "iOS"
  path: /lite/models/image_classification/ios
  + - heading: "Other techniques"
  - title: "Object detection"
  - section:
  - - title: "Overview"
  path: /lite/models/object_detection/overview
  - title: "Pose estimation"
  - section:
  - - title: "Overview"
  path: /lite/models/pose_estimation/overview
  - title: "Segmentation"
  - section:
  - - title: "Overview"
  path: /lite/models/segmentation/overview
  - title: "Smart reply"
  - section:
  - - title: "Overview"
  path: /lite/models/smart_reply/overview
  - name: "API"
  