Merge branch 'master' of https://gitee.com/dcloud/unidocs-zh into vuepress

docs/tutorial/migration-to-vue3.md

@@ -349,4 +349,22 @@
             Vuex // 如果 nvue 使用 vuex 的各种map工具方法时，必须 return Vuex
         }
     }
-    ```
\ No newline at end of file
+    ```
+  - App，小程序端源码调试，需要在 vite.config.js 中主动开启 sourcemap
+
+    ```js
+    import { defineConfig } from "vite";
+    import uni from "@dcloudio/vite-plugin-uni";
+
+    /**
+     * @type {import('vite').UserConfig}
+     */
+
+    export default defineConfig({
+      build: {
+        sourcemap: true,
+      },
+
+      plugins: [uni()],
+    });
+    ```