Update footer.html

wiki/footer.html

 <footer class="pb-1 pt-1 mt-5 footer" style="background-color: #ffe4e1;">
   
-  <div class="container text-center">
+  <div class="container">
     <div class="row">
-      <div class="col-lg-6 col-xs-12 ">
+      <div class="col-lg-6 col-xs-12">
           <h4 class="mt-lg-0 mt-sm-3">Follow us on social media</h4>
           <div class="row">
               <div class="col-lg-6 col-xs-12">
-                  <ul class="m-1 p-1">
-                      <li><a href="https://www.instagram.com/" style="color: black;">Instagram</a></li>
-                      <li><a href="https://www.youtube.com/" style="color: black;">YouTube</a></li>
-                      <li><a href="https://www.tiktok.com/" style="color: black;">TikTok</a></li>
-                      <li><a href="https://www.bilibili.com/" style="color: black;">Bilibili</a></li>
+                  <div class="m-1 p-1">
+                      <a href="https://www.instagram.com/" style="color: black;">Instagram</a>
+                      <a href="https://www.youtube.com/" style="color: black;">YouTube</a>
+                      <a href="https://www.tiktok.com/" style="color: black;">TikTok</a>
+                      <a href="https://www.bilibili.com/" style="color: black;">Bilibili</a>
                   </ul>
               </div>
               <div class="col-lg-6 col-xs-12">
-                  <ul class="m-1 p-1">
-                      <li><a href="https://www.wechat.com/" style="color: black;">WeChat</a></li>
-                      <li><a href=# style="color: black;">......</a></li>
+                  <div class="m-1 p-1">
+                      <a href="https://www.wechat.com/" style="color: black;">WeChat</a>
+                      <a href=# style="color: black;">......</a>
                   </ul>
               </div>
           </div>