add hexo-generator-alias for aliases/redirects

website/package.json

@@ -11,6 +11,7 @@
     "hexo": "^3.3.7",
     "hexo-browsersync": "0.2.0",
     "hexo-deployer-git": "0.2.0",
+    "hexo-generator-alias": "^0.1.3",
     "hexo-generator-archive": "0.1.4",
     "hexo-generator-category": "0.1.3",
     "hexo-generator-feed": "1.2.0",