build: add footer

public/index.html

@@ -378,7 +378,7 @@
   <footer class="page-footer grey darken-2">
     <div class="footer-copyright">
       <div class="container">
-        &copy; 2022 GitCode.net
+        &copy; 2022 <a href="https://gitcode.net" rel="nofollow noopener" class="white-text" target="_blank">GitCode.net</a>
 
         <div class="right">
           公安备案号 110101010101｜京ICP备19004658号-14｜网络110报警服务｜<a href="http://hexo.io/" rel="nofollow noopener" class="white-text" target="_blank">Hexo</a>

public/sitemap.xml

@@ -6,14 +6,14 @@
   </sitemap>
   <sitemap>
     <loc>https://docs.gitcode.net/spring/guide/sitemap.xml</loc>
-    <lastmod>"2022-04-12T02:05:45.869Z"</lastmod>
+    <lastmod>"2022-04-12T02:15:06.555Z"</lastmod>
   </sitemap>
   <sitemap>
     <loc>https://docs.gitcode.net/mysql/guide/sitemap.xml</loc>
-    <lastmod>"2022-04-12T02:05:45.869Z"</lastmod>
+    <lastmod>"2022-04-12T02:15:06.555Z"</lastmod>
   </sitemap>
   <sitemap>
     <loc>https://docs.gitcode.net/pg/guide/sitemap.xml</loc>
-    <lastmod>"2022-04-12T02:05:45.869Z"</lastmod>
+    <lastmod>"2022-04-12T02:15:06.555Z"</lastmod>
   </sitemap>
 </sitemapindex>
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