website: update link to Nix file

File path was moved in:
NixOS/nixpkgs@f89d3cf

Signed-off-by: Kenichi Kamiya <[email protected]>

Author: kachick

website/content/en/docs/installation/_index.md

@@ -36,7 +36,7 @@ Port: <https://ports.macports.org/port/lima/>
 nix-env -i lima
 ```
 
-Nix file: <https://github.com/NixOS/nixpkgs/blob/master/pkgs/applications/virtualization/lima/default.nix>
+Nix file: <https://github.com/NixOS/nixpkgs/blob/master/pkgs/by-name/li/lima/package.nix>
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