fix time format

docs/.vuepress/config.js

@@ -79,7 +79,19 @@ module.exports = {
             hostname: "https://dev-cloud.gitcode.host/spring/",
             // 排除无实际内容的页面
             exclude: ["/404.html"]
-        }]
+        }],
+        [
+            '@vuepress/last-updated', 
+            {
+              transformer: (timestamp, lang) => {
+                //return (new Date(timestamp)).toUTCString() 或者用下面这段
+                // 不要忘了安装 moment
+                const moment = require('moment')
+                moment.locale(lang)
+                return moment(timestamp).toString()
+              }
+            }
+          ]
     ],
     themeConfig: {
         repo: "https://gitcode.net/dev-cloud/spring",

package.json

@@ -7,6 +7,7 @@
     "vuepress-plugin-autometa": "^0.1.13"
   },
   "dependencies": {
+    "moment": "^2.29.1",
     "vuepress-plugin-sitemap": "^2.3.1"
   }
 }