fix: Adding Ads to Sidebar

Author: JoaHuang

docs/.vuepress/components/Sidebar.vue

@@ -2,10 +2,12 @@
   <Sidebar>
     <template #top>
       <div class="ss">
-        <!-- <div class="sidebar-ad-placeholder">
-          广告 1
-        </div>
         <div class="sidebar-ad-placeholder">
+          <a href="https://doc.hutool.cn/" target="_blank">
+            <img src="/img/ss/hutool.pic.jpg" alt="Hutool" style="max-width: 90%; height: auto;" />
+          </a>
+        </div>
+        <!-- <div class="sidebar-ad-placeholder">
           广告 2
         </div>
         <div class="sidebar-ad-placeholder">
@@ -47,12 +49,14 @@ const showMingdao = false;
 .sidebar-ad-placeholder {
   width: 100%;
   height: 100px;
-  margin-bottom: 16px;
+  // margin-bottom: 16px;
+  margin: 35px 0 16px 0;
   // background: #eee;
   border-radius: 5px;
   display: flex;
   align-items: center;
   justify-content: center;
+
 }
 
 .mingdao {