Update README.md

Author: haydenbleasel

README.md

@@ -44,6 +44,21 @@ Ultracite is designed to be used with [VS Code](https://code.visualstudio.com/).
   "editor.codeActionsOnSave": {
     "quickfix.biome": "explicit",
     "source.organizeImports.biome": "explicit"
+  },
+  "[typescript]": {
+    "editor.defaultFormatter": "biomejs.biome"
+  },
+  "[json]": {
+    "editor.defaultFormatter": "biomejs.biome"
+  },
+  "[javascript]": {
+    "editor.defaultFormatter": "biomejs.biome"
+  },
+  "[jsonc]": {
+    "editor.defaultFormatter": "biomejs.biome"
+  },
+  "[typescriptreact]": {
+    "editor.defaultFormatter": "biomejs.biome"
   }
 }
 ```