* reword documentation on `nix-copy-closure`
- one sentence per line
- be more precise with respect to which Nix stores are being accessed
- make a clear distinction between store paths and store objects
- add links to definitions of terms
- clarify which machine is which
- --to and --from don't take arguments
Co-authored-by: Robert Hensing <roberth@users.noreply.github.com>
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