Fix link to docs

Author: sandydoo

modules/hook.nix

@@ -107,7 +107,7 @@ in
       type = types.listOf types.str;
       description = lib.mdDoc
         ''
-          List of file types to run on. See [Filtering files with types](https://pre-commit.com/#plugins).
+          List of file types to run on. See [Filtering files with types](https://pre-commit.com/#filtering-files-with-types).
         '';
       default = [ "file" ];
     };