docs: opt doc #767 [update site]

Author: tangjinzhou

site/components/layout.vue

@@ -304,7 +304,7 @@ export default {
           </div>
         </a-locale-provider>
         { name.indexOf('back-top') === -1 ? <a-back-top /> : null }
-        <Geektime />
+        { isCN && <Geektime /> }
       </div>
     );
   },

site/index.less

@@ -36,7 +36,9 @@
   font-weight: 500;
   background: rgba(0, 0, 0, 0.02);
 }
-.api-container pre code {
+
+pre > code[class*='lang-'],
+pre > code[class*='language-'] {
   padding: 12px 20px;
   overflow: auto;
 }