#1 add webpack cache modules

package.json

@@ -5,7 +5,7 @@
     "readme:copy": "cp -r README.md readme docs/",
     "fix-memory-limit": "cross-env LIMIT=14336 increase-memory-limit",
     "mv": "rm -rf public && mkdir -p public/guide && mv docs/.vuepress/dist/* public/guide/"
-  }, 
+  },
   "devDependencies": {
     "cross-env": "^7.0.3",
     "increase-memory-limit": "^1.0.7",
@@ -15,6 +15,8 @@
     "vuepress-plugin-sitemap": "^2.3.1"
   },
   "dependencies": {
+    "cache-loader": "^4.1.0",
+    "happypack": "^5.0.1",
     "xml2js": "^0.4.23"
   }
 }