Cherry pick PR #1908: Update headings of last two doc files for cobalt.dev migration #1307

Job	Run time
android-arm / initialize	1m 10s
android-arm64 / initialize	30s
android-x86 / initialize	42s
android-arm64 / docker-build-image	34s
android-arm64 / docker-unittest-image	0s
android-x86 / docker-build-image	27s
android-x86 / docker-unittest-image	0s
android-arm / docker-build-image	28s
android-arm / docker-unittest-image	0s
android-arm64 / arm64_devel	16m 31s
android-arm64 / arm64_debug	16m 34s
android-arm64 / arm64_qa	7m 20s
android-arm64 / arm64_gold	7m 12s
android-x86 / x86_devel	18m 5s
android-x86 / x86_debug	16m 50s
android-x86 / x86_qa	6m 55s
android-x86 / x86_gold	7m 49s
android-arm / arm_devel	18m 28s
android-arm / arm_debug	17m 42s
android-arm / arm_qa	6m 52s
android-arm / arm_gold	7m 52s
android-arm64 / ${{ matrix.name }}_${{ matrix.shard }}_test	0s
android-arm64 / ${{ matrix.name }}_on_device_${{ matrix.shard }}	0s
android-arm64 / on-host-unit-test-report	0s
android-x86 / ${{ matrix.name }}_on_device_${{ matrix.shard }}	0s
android-x86 / ${{ matrix.name }}_${{ matrix.shard }}_test	0s
android-x86 / on-host-unit-test-report	0s
android-arm / ${{ matrix.name }}_${{ matrix.shard }}_test	0s
android-arm / ${{ matrix.name }}_on_device_${{ matrix.shard }}	0s
android-arm / on-host-unit-test-report	0s
	2h 32m 1s

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