- name: Client library help
  items:
  - name: Getting started
    href: getting-started.md
  - name: Troubleshooting
    href: troubleshooting.md
  - name: Emulator support
    href: emulators.md
  - name: Supported platforms
    href: platforms.md
  - name: Package names
    href: package-names.md
  - name: Page streaming
    href: page-streaming.md
  - name: Resource names and IDs
    href: resource-names.md
  - name: API layers
    href: api-layers.md
  - name: Call settings
    href: call-settings.md
  - name: Resource clean-up
    href: cleanup.md
  - name: Versioning
    href: versioning.md

- name: Client library help
  items:
  - name: Getting started
    href: getting-started.md
  - name: Troubleshooting
    href: troubleshooting.md
  - name: Emulator support
    href: emulators.md
  - name: Supported platforms
    href: platforms.md
  - name: Package names
    href: package-names.md
  - name: Page streaming
    href: page-streaming.md
  - name: Resource names and IDs
    href: resource-names.md
  - name: API layers
    href: api-layers.md
  - name: Call settings
    href: call-settings.md
  - name: Resource clean-up
    href: cleanup.md
  - name: Versioning
    href: versioning.md
  - name: GAX v4 breaking changes
    href: breaking-gax4.md

Add TOC entry for GAX v4 breaking changes
docs: Add TOC entry for GAX v4 breaking changes

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