[improvement] update sub-packages name (#2306)

build/build-components.js

@@ -4,7 +4,7 @@
 const fs = require('fs-extra');
 const path = require('path');
 const babel = require('@babel/core');
-const compiler = require('vue-sfc-compiler');
+const compiler = require('@vant/compiler');
 const markdownVetur = require('markdown-vetur');
 
 const esDir = path.join(__dirname, '../es');

build/webpack.dev.js

@@ -68,7 +68,7 @@ module.exports = {
         test: /\.md$/,
         use: [
           'vue-loader',
-          'fast-vue-md-loader'
+          '@vant/markdown-loader'
         ]
       },
       {