Update release note

Author: edolstra

doc/manual/rl-next/relative-path-flakes.md

@@ -7,6 +7,6 @@ Flakes can now refer to other flakes in the same repository using relative paths
 ```nix
 inputs.foo.url = "path:./foo";
 ```
-uses the flake in the `foo` subdirectory of the referring flake.
+uses the flake in the `foo` subdirectory of the referring flake. For more information, see the documentation on [the `path` flake input type](@docroot@/command-ref/new-cli/nix3-flake.md#path-fetcher).
 
 This feature required a change to the lock file format. Previous Nix versions will not be able to use lock files that have locks for relative path inputs in them.

src/nix/flake.md

@@ -187,7 +187,7 @@ Currently the `type` attribute can be one of the following:
   * `nixpkgs/nixos-unstable/a3a3dda3bacf61e8a39258a0ed9c924eeca8e293`
   * `sub/dir` (if a flake named `sub` is in the registry)
 
-* `path`: arbitrary local directories. The required attribute `path`
+* <a name="path-fetcher"></a>`path`: arbitrary local directories. The required attribute `path`
   specifies the path of the flake. The URL form is
 
   ```