Update headings of last two doc files for cobalt.dev migration (#1908) #2110

Job	Run time
android-x86 / initialize	41s
android-arm64 / initialize	39s
android-arm / initialize	41s
android-arm64 / docker-build-image	18m 14s
android-arm64 / docker-unittest-image	0s
android-arm / docker-build-image	17m 53s
android-x86 / docker-build-image	17m 59s
android-arm / docker-unittest-image	0s
android-x86 / docker-unittest-image	0s
android-arm / arm_devel	17m 32s
android-arm / arm_debug	15m 6s
android-arm / arm_qa	6m 58s
android-arm / arm_gold	7m 9s
android-x86 / x86_devel	34m 44s
android-x86 / x86_debug	16m 0s
android-x86 / x86_qa	8m 10s
android-x86 / x86_gold	6m 56s
android-arm64 / arm64_devel	19m 10s
android-arm64 / arm64_debug	22m 10s
android-arm64 / arm64_qa	7m 2s
android-arm64 / arm64_gold	7m 31s
android-arm / ${{ matrix.name }}_on_device_${{ matrix.shard }}	0s
android-arm / ${{ matrix.name }}_${{ matrix.shard }}_test	0s
android-arm64 / ${{ matrix.name }}_${{ matrix.shard }}_test	0s
android-arm64 / ${{ matrix.name }}_on_device_${{ matrix.shard }}	0s
android-x86 / ${{ matrix.name }}_${{ matrix.shard }}_test	0s
android-x86 / ${{ matrix.name }}_on_device_${{ matrix.shard }}	0s
	3h 44m 35s

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