move settings into a single object

dev.html

@@ -23,15 +23,14 @@
       '/zh-cn/changelog': '/changelog',
       '/changelog': 'https://raw.githubusercontent.com/QingWei-Li/docsify/master/CHANGELOG'
     },
+    auto2top: true,
+    basePath: '/docs/',
+    executeScript: true,
     loadNavbar: true,
-    executeScript: true
+    loadSidebar: true,
+    name: 'docsify',
+    subMaxLevel: 2
   }
 </script>
-<script
+<script src="/lib/docsify.min.js"></script>
-  src="/lib/docsify.js"
-  data-name="docsify"
-  data-base-path="/docs/"
-  data-load-sidebar
-  data-sub-max-level="2"
-  data-auto2top></script>
 </html>