flow moduoles (#161)

* flow intro

* docs:flow modules

* docs:flow modules

docSite/sidebars.js

@@ -10,7 +10,7 @@ const sidebars = {
       link: {
         type: 'generated-index'
       },
-      collapsed: false,
+      collapsed: true,
       items: [
         {
           type: 'category',
@@ -32,6 +32,7 @@ const sidebars = {
           link: {
             type: 'generated-index'
           },
+          collapsed: false,
           items: [
             {
               type: 'autogenerated',
@@ -42,7 +43,6 @@ const sidebars = {
         {
           type: 'category',
           label: 'Deploy',
-          collapsed: false,
           link: {
             type: 'generated-index'
           },
@@ -56,15 +56,6 @@ const sidebars = {
         'develop/oneapi'
       ]
     },
-    {
-      type: 'category',
-      label: 'Deploy',
-      link: {
-        type: 'generated-index'
-      },
-      collapsed: false,
-      items: [{ type: 'autogenerated', dirName: 'deploy' }]
-    },
     {
       type: 'category',
       label: 'Datasets',
@@ -80,7 +71,36 @@ const sidebars = {
       link: {
         type: 'generated-index'
       },
-      items: [{ type: 'autogenerated', dirName: 'flow-modules' }]
+      collapsed: false,
+      items: [
+        'flow-modules/intro',
+        {
+          type: 'category',
+          label: 'Modules Intro',
+          link: {
+            type: 'generated-index'
+          },
+          items: [
+            {
+              type: 'autogenerated',
+              dirName: 'flow-modules/modules'
+            }
+          ]
+        },
+        {
+          type: 'category',
+          label: 'Examples',
+          link: {
+            type: 'generated-index'
+          },
+          items: [
+            {
+              type: 'autogenerated',
+              dirName: 'flow-modules/examples'
+            }
+          ]
+        }
+      ]
     },
     {
       type: 'category',