add the link to the home page

Author: njzjz

deepmodeling_sphinx/banner.html

@@ -66,7 +66,7 @@
     <div class="container-fluid">
         <div class="container">
             <div class="mobile-main-menu-header-container">
-                <a class="header-logo" href="{{ theme_variables.external_urls['home'] }}" aria-label="deepmodeling"></a>
+                <a class="header-logo" href="https://deepmodeling.com" aria-label="deepmodeling"></a>
                 <a class="main-menu-close-button" href="#" data-behavior="close-mobile-menu"></a>
             </div>
         </div>