add section Installation to README #8

Job	Run time
Julia 1.10 - ubuntu-latest - x64 - push	2m 22s
Julia 1 - ubuntu-latest - x64 - push	3m 58s
Julia pre - ubuntu-latest - x64 - push	4m 10s
Julia 1 - windows-latest - x64 - push	5m 52s
Julia 1 - macOS-latest - x64 - push	5m 37s
	21m 59s

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