languages/json: add prettier and prettierd

docs/manual/release-notes/rl-0.9.md

@@ -566,5 +566,7 @@ https://github.com/gorbit99/codewindow.nvim
 [PHPStan]: https://github.com/phpstan/phpstan
 
 - Add [PHPStan] as a formatter for `vim.languages.php`.
+- Add `prettier` and `prettierd` as supported formatters to
+  `vim.languages.json`.
 
 <!-- vim: set textwidth=80: -->

modules/plugins/languages/json.nix

@@ -25,6 +25,14 @@
       command = getExe pkgs.jsonfmt;
       args = ["-w" "-"];
     };
+
+    prettier = {
+      command = getExe pkgs.prettier;
+    };
+
+    prettierd = {
+      command = getExe pkgs.prettierd;
+    };
   };
 in {
   options.vim.languages.json = {