Document `DefaultConstructible` and `CopyConstructible` #111

Job	Run time
Julia 1.6 - macos-13 - x64	2m 4s
Julia 1.6 - ubuntu-latest - x64	1m 44s
Julia 1.10 - macos-13 - x64	1m 55s
Julia 1.10 - ubuntu-latest - x64	1m 20s
Julia nightly - macos-13 - x64	2m 25s
Julia nightly - ubuntu-latest - x64	2m 1s
Julia 1.10 - macos-14 - aarch64	2m 23s
Julia nightly - macos-14 - aarch64	1m 29s
	15m 21s

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