add sitemap

Author: Yu-Xiaoxian

_config.yml

@@ -72,6 +72,7 @@ pagination_dir: page
 
 # Extensions
 ## Plugins: https://hexo.io/plugins/
+plugins: hexo-generator-sitemap
 ## Themes: https://hexo.io/themes/
 theme: next
 

package.json

@@ -12,6 +12,7 @@
     "hexo-generator-archive": "^2.0.0",
     "hexo-generator-category": "^2.0.0",
     "hexo-generator-index": "^3.0.0",
+    "hexo-generator-sitemap": "^3.0.1",
     "hexo-generator-tag": "^2.0.0",
     "hexo-renderer-ejs": "^2.0.0",
     "hexo-renderer-kramed": "^0.1.4",