Update the PyPI project description #429

Job	Run time
macos-aarch64	26s
sdist	27s
windows (x86_64-pc-windows-msvc, x64)	26s
macos-x86_64	25s
windows (i686-pc-windows-msvc, x86)	27s
linux (x86_64-unknown-linux-gnu)	24s
linux-arm (aarch64-unknown-linux-gnu, aarch64, -e JEMALLOC_SYS_WITH_LG_PAGE=16)	25s
linux-powerpc (powerpc64le-unknown-linux-gnu, ppc64le)	22s
linux (i686-unknown-linux-gnu)	23s
linux-arm (armv7-unknown-linux-gnueabihf, armv7)	26s
linux-powerpc (powerpc64-unknown-linux-gnu, ppc64)	24s
linux-s390x (s390x-unknown-linux-gnu, s390x)	26s
linux-arm (arm-unknown-linux-musleabihf, arm)	24s
musllinux (x86_64-unknown-linux-musl)	26s
musllinux-cross (aarch64-unknown-linux-musl, aarch64, -e JEMALLOC_SYS_WITH_LG_PAGE=16)	23s
musllinux (i686-unknown-linux-musl)	25s
musllinux-cross (armv7-unknown-linux-musleabihf, armv7)	23s
musllinux-cross (powerpc64le-unknown-linux-musl, ppc64le, nightly)	24s
	7m 26s

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