Add hexo-browsersync

Author: dgeb

package.json

@@ -12,6 +12,7 @@
   },
   "dependencies": {
     "hexo": "^3.2.2",
+    "hexo-browsersync": "^0.2.0",
     "hexo-deployer-git": "0.1.0",
     "hexo-generator-alias": "^0.1.3",
     "hexo-generator-archive": "^0.1.4",
@@ -24,4 +25,4 @@
     "hexo-renderer-stylus": "^0.3.1",
     "hexo-server": "^0.2.0"
   }
-}
+}