chore: update

Author: Timeless0911

website/docs/en/guide/basic/UMD.mdx renamed to website/docs/en/guide/basic/umd1.mdx

@@ -1,49 +1 @@
 # UMD
-
-## Introduction
-
-UMD is a library that can be used in both the browser and Node.js environments. It is a combination of CommonJS and AMD.
-
-## How to build a UMD library?
-
-- Set the `output.format` to `umd` in the Rslib configuration file.
-- If the library need to be exported with a name, set `output.umdName` to the name of the UMD library.
-- Use `output.externals` to specify the external dependencies that the UMD library depends on, `lib.autoExtension` is enabled by default for UMD.
-
-## Examples
-
-The following Rslib config is an example to build a UMD library.
-
-- `output.format: 'umd'`: instruct Rslib to build in UMD format.
-- `output.umdName: 'RslibUmdExample'`: set the export name of the UMD library.
-- `output.externals.react: 'React'`: specify the external dependency `react` could be accessed by `window.React`.
-- `runtime: 'classic'`: use the classic runtime of React to support applications that using React version under 18.
-
-```ts title="rslib.config.ts" {7-12,22}
-import { pluginReact } from '@rsbuild/plugin-react';
-import { defineConfig } from '@rslib/core';
-
-export default defineConfig({
-  lib: [
-    {
-      format: 'umd',
-      umdName: 'RslibUmdExample',
-      output: {
-        externals: {
-          react: 'React',
-        },
-        distPath: {
-          root: './dist/umd',
-        },
-      },
-    },
-  ],
-  plugins: [
-    pluginReact({
-      swcReactOptions: {
-        runtime: 'classic',
-      },
-    }),
-  ],
-});
-```