Remove digits from directories and notebooks names #79

Job	Run time
build_install_requirements (ubuntu-20.04, 3.8)	2m 19s
build_install_requirements (ubuntu-20.04, 3.9)	2m 29s
build_install_requirements (ubuntu-20.04, 3.10)	2m 22s
build_install_requirements (ubuntu-20.04, 3.11)	2m 28s
build_install_requirements (ubuntu-22.04, 3.8)	2m 29s
build_install_requirements (ubuntu-22.04, 3.9)	3m 23s
build_install_requirements (ubuntu-22.04, 3.10)	3m 10s
build_install_requirements (ubuntu-22.04, 3.11)	3m 19s
build_install_requirements (windows-2019, 3.8)	9m 21s
build_install_requirements (windows-2019, 3.9)	6m 34s
build_install_requirements (windows-2019, 3.10)	8m 46s
build_install_requirements (windows-2019, 3.11)	8m 59s
build_install_requirements (windows-2022, 3.8)	8m 39s
build_install_requirements (windows-2022, 3.9)	8m 41s
build_install_requirements (windows-2022, 3.10)	8m 53s
build_install_requirements (windows-2022, 3.11)	7m 9s
build_install_requirements (macos-11, 3.8)	5m 8s
build_install_requirements (macos-11, 3.9)	5m 10s
build_install_requirements (macos-11, 3.10)	20m 4s
build_install_requirements (macos-11, 3.11)	5m 21s
build_install_requirements (macos-12, 3.8)	5m 10s
build_install_requirements (macos-12, 3.9)	3m 34s
build_install_requirements (macos-12, 3.10)	3m 32s
build_install_requirements (macos-12, 3.11)	4m 5s
	2h 21m 5s

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