Simplify instructions by removing project layout and documentation se… #50

Job	Run time
macOS \| NDK-r26d \| cmake \| with-ffmpeg \| 4kb	3m 35s
macOS \| NDK-r26d \| cmake \| no-ffmpeg \| 4kb	5m 7s
macOS \| NDK-r27c \| cmake \| with-ffmpeg \| 16kb	4m 8s
macOS \| NDK-r27c \| cmake \| with-ffmpeg \| 4kb	5m 17s
macOS \| NDK-r27c \| cmake \| no-ffmpeg \| 4kb	2m 47s
macOS \| NDK-r26d \| cmake \| no-ffmpeg \| 16kb	4m 12s
macOS \| NDK-r26d \| cmake \| with-ffmpeg \| 16kb	3m 16s
macOS \| NDK-r27c \| cmake \| no-ffmpeg \| 16kb	2m 38s
	31m 0s

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