README: fix typos and grammar (#648) #336

Job	Run time
Run test with Python 3.11 on ubuntu-latest	32s
Run test with Python 3.13 on windows-latest	1m 15s
Run test with Python 3.10 on ubuntu-latest	36s
Run test with Python 3.14-dev on ubuntu-latest	45s
Run test with Python 3.14-dev on windows-latest	1m 40s
Run test with Python 3.12 on windows-latest	1m 28s
Run test with Python 3.12 on ubuntu-latest	37s
Run test with Python 3.14-dev on windows-11-arm	2m 47s
Run test with Python 3.13 on ubuntu-latest	32s
Run test with Python 3.14-dev on macos-latest	43s
Run test with Python 3.12 on macos-latest	43s
Run test with Python 3.12 on windows-11-arm	1m 22s
Run test with Python 3.11 on windows-11-arm	1m 58s
Run test with Python 3.10 on windows-latest	1m 10s
Run test with Python 3.11 on macos-latest	30s
Run test with Python 3.11 on windows-latest	1m 7s
Run test with Python 3.13 on macos-latest	24s
Run test with Python 3.9 on ubuntu-latest	32s
Run test with Python 3.9 on windows-latest	1m 16s
Run test with Python 3.10 on macos-latest	43s
Run test with Python 3.13 on windows-11-arm	1m 42s
Run test with Python 3.9 on macos-latest	1m 2s
	23m 24s

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