Update header.html

Author: Beikewzh

_includes/header.html

@@ -1,7 +1,7 @@
 <div class="header">
   <div class="container">
     <div class="logo">
-      <a href="{{ "/" | relative_url }}">
+      <a href="{{ '/' | absolute_url }}">
         <img
           width="{{ site.logo.desktop_width }}"
           height="{{ site.logo.desktop_height }}"
@@ -11,7 +11,7 @@
       </a>
     </div>
     <div class="logo-mobile">
-      <a href="{{ "/" | relative_url }}">
+      <a href="{{ '/' | absolute_url }}">
         <img
           width="{{ site.logo.mobile_width }}"
           height="{{ site.logo.mobile_height }}"