Apply Prettier format

Author: autofix-ci[bot]

docs/.vuepress/config.js

@@ -207,14 +207,14 @@ module.exports = {
             title: "Howto Series",
             path: "/series/",
             children: [
-            {
-              title: "Beginner Series",
-              path: "/beginners/",
-              children: [
-  				"/beginners/file-and-folder-permissions",
-  				"/beginners/users-and-groups",
-  			  		],
-            },
+              {
+                title: "Beginner Series",
+                path: "/beginners/",
+                children: [
+                  "/beginners/file-and-folder-permissions",
+                  "/beginners/users-and-groups",
+                ],
+              },
               "/series/LAMP-server",
               {
                 title: "Nginx Series",