Update documents to run Cobalt on Linux in evergreen mode #15455

Job	Run time
android-arm / initialize	46s
android-arm64 / initialize	43s
android-x86 / initialize	45s
android-x86 / docker-build-image	1m 34s
android-x86 / docker-unittest-image	0s
android-arm64 / docker-build-image	1m 33s
android-arm64 / docker-unittest-image	0s
android-arm / docker-build-image	1m 41s
android-arm / docker-unittest-image	0s
android-arm64 / arm64_devel	16m 30s
android-arm64 / arm64_debug	16m 3s
android-arm64 / arm64_qa	9m 1s
android-arm64 / arm64_gold	9m 19s
android-x86 / x86_devel	16m 21s
android-x86 / x86_debug	16m 37s
android-x86 / x86_qa	9m 0s
android-x86 / x86_gold	8m 57s
android-arm / arm_devel	16m 25s
android-arm / arm_debug	16m 19s
android-arm / arm_qa	8m 43s
android-arm / arm_gold	8m 44s
android-arm64 / ${{ matrix.name }}_${{ matrix.shard }}_test	0s
android-arm64 / ${{ matrix.name }}_on_device_${{ matrix.shard }}	0s
android-arm / ${{ matrix.name }}_${{ matrix.shard }}_test	0s
android-arm / ${{ matrix.name }}_on_device_${{ matrix.shard }}	0s
android-x86 / ${{ matrix.name }}_${{ matrix.shard }}_test	0s
android-x86 / ${{ matrix.name }}_on_device_${{ matrix.shard }}	0s
upload-release-artifacts	16s
	2h 39m 17s

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