update elasticdl doc

Author: lhw362950217

_config.yml

@@ -363,59 +363,113 @@ defaults:
       grand_parent: SQLFlow
       nav_order: 3
   - scope:
-      path: "elasticdl/docs/designs/data_preparation.md"
+      path: "elasticdl/docs/tutorials/get_started.md"
     values:
       nav_exclude: false
-      parent: ElasticDL 
+      parent: ElasticDL
       nav_order: 1
   - scope:
-      path: "elasticdl/docs/designs/distributed_embedding_layer.md"
+      path: "elasticdl/docs/designs/overall.md"
     values:
       nav_exclude: false
-      parent: ElasticDL 
+      parent: ElasticDL
       nav_order: 2
   - scope:
-      path: "elasticdl/docs/tutorials/elasticdl_cloud.md"
+      path: "elasticdl/docs/designs/high_level_api.md"
     values:
       nav_exclude: false
-      parent: ElasticDL 
+      parent: ElasticDL
       nav_order: 3
   - scope:
-      path: "elasticdl/docs/designs/archived/worker_optimization.md"
+      path: "elasticdl/docs/designs/dynamic_data_sharding.md"
     values:
       nav_exclude: false
       parent: ElasticDL
       nav_order: 4
   - scope:
-      path: "elasticdl/docs/designs/archived/odps_support.md"
+      path: "elasticdl/docs/designs/concepts.md"
     values:
       nav_exclude: false
       parent: ElasticDL
       nav_order: 5
   - scope:
-      path: "elasticdl/docs/designs/model_evaluation.md"
+      path: "elasticdl/docs/designs/parameter_server.md"
     values:
       nav_exclude: false
       parent: ElasticDL
       nav_order: 6
   - scope:
-      path: "elasticdl/docs/tutorials/model_building.md"
+      path: "elasticdl/docs/designs/high_performance_ps.md"
     values:
       nav_exclude: false
       parent: ElasticDL
       nav_order: 7
   - scope:
-      path: "elasticdl/docs/designs/high_level_api.md"
+      path: "elasticdl/docs/designs/distributed_embedding_layer.md"
     values:
       nav_exclude: false
       parent: ElasticDL
       nav_order: 8
   - scope:
-      path: "elasticdl/docs/designs/elastic_sync_sgd.md"
+      path: "elasticdl/docs/designs/allreduce.md"
     values:
       nav_exclude: false
       parent: ElasticDL
       nav_order: 9
+  - scope:
+      path: "elasticdl/docs/designs/elastic_sync_sgd.md"
+    values:
+      nav_exclude: false
+      parent: ElasticDL
+      nav_order: 10
+  - scope:
+      path: "elasticdl/docs/designs/async_sgd.md"
+    values:
+      nav_exclude: false
+      parent: ElasticDL
+      nav_order: 11
+  - scope:
+      path: "elasticdl/docs/designs/checkpoint_design.md"
+    values:
+      nav_exclude: false
+      parent: ElasticDL
+      nav_order: 12
+  - scope:
+      path: "elasticdl/docs/designs/model_serving.md"
+    values:
+      nav_exclude: false
+      parent: ElasticDL
+      nav_order: 13
+  - scope:
+      path: "elasticdl/docs/designs/keras_callback.md"
+    values:
+      nav_exclude: false
+      parent: ElasticDL
+      nav_order: 14
+  - scope:
+      path: "elasticdl/docs/designs/data_preparation.md"
+    values:
+      nav_exclude: false
+      parent: ElasticDL
+      nav_order: 15
+  - scope:
+      path: "elasticdl/docs/designs/data_io_pipeline.md"
+    values:
+      nav_exclude: false
+      parent: ElasticDL
+      nav_order: 16
+  - scope:
+      path: "elasticdl/docs/designs/data_transform.md"
+    values:
+      nav_exclude: false
+      parent: ElasticDL
+      nav_order: 17
+  - scope:
+      path: "elasticdl/docs/designs/sqlflow_integration.md"
+    values:
+      nav_exclude: false
+      parent: ElasticDL
+      nav_order: 18
 
 footer:
   links: