docs: simplify New Features and cge-tools sections in README #82

Job	Run time
Windows \| NDK-r29 \| cmake \| with-ffmpeg \| 4kb	6m 44s
Windows \| NDK-r29 \| cmake \| no-ffmpeg \| 16kb	7m 23s
Windows \| NDK-r29 \| cmake \| no-ffmpeg \| 4kb	8m 0s
Windows \| NDK-r27c \| cmake \| with-ffmpeg \| 4kb	6m 37s
Windows \| NDK-r27c \| cmake \| with-ffmpeg \| 16kb	6m 18s
Windows \| NDK-r27c \| cmake \| no-ffmpeg \| 16kb	5m 49s
Windows \| NDK-r29 \| cmake \| with-ffmpeg \| 16kb	7m 47s
Windows \| NDK-r27c \| cmake \| no-ffmpeg \| 4kb	4m 49s
	53m 27s

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