docs: make add d.ts default

Author: fi3ework

docs/guide/features.md

@@ -38,7 +38,13 @@ Note that because `esbuild` only performs transpilation without type information
 
 ### Client Types
 
-Vite's default types are for its Node.js API. To shim the environment of client side code in a Vite application, add `vite/client` to `compilerOptions.types` of your `tsconfig`:
+Vite's default types are for its Node.js API. To shim the environment of client side code in a Vite application, add a `d.ts` declaration file:
+
+```typescript
+/// <reference types="vite/client" />
+```
+
+Also, you can add `vite/client` to `compilerOptions.types` of your `tsconfig`:
 
 ```json
 {
@@ -48,12 +54,6 @@ Vite's default types are for its Node.js API. To shim the environment of client
 }
 ```
 
-Also, you can add a `d.ts` declaration file:
-
-```typescript
-/// <reference types="vite/client" />
-```
-
 This will provide the following type shims:
 
 - Asset imports (e.g. importing an `.svg` file)