Fix up Tutorials landing page and Tutorials left nav. (#8557)

* Fix up Tutorials landing page and Tutorials left nav.

* Add redirects. Fix bullet.

content/en/docs/tutorials/stateful-application/_index.md

@@ -1,5 +1,5 @@
 ---
 title: "Stateful Applications"
-weight: 90
+weight: 50
 ---
 

content/en/docs/tutorials/stateful-application/basic-stateful-set.md

@@ -8,6 +8,7 @@ reviewers:
 - smarterclayton
 title: StatefulSet Basics
 content_template: templates/tutorial
+weight: 10
 ---
 
 {{% capture overview %}}

content/en/docs/tutorials/stateful-application/cassandra.md

@@ -3,6 +3,7 @@ title: "Example: Deploying Cassandra with Stateful Sets"
 reviewers:
 - ahmetb
 content_template: templates/tutorial
+weight: 30
 ---
 
 {{% capture overview %}}

content/en/docs/tutorials/stateful-application/mysql-wordpress-persistent-volume.md

@@ -3,6 +3,7 @@ title: "Example: Deploying WordPress and MySQL with Persistent Volumes"
 reviewers:
 - ahmetb
 content_template: templates/tutorial
+weight: 20
 ---
 
 {{% capture overview %}}

content/en/docs/tutorials/stateful-application/zookeeper.md

@@ -9,6 +9,7 @@ reviewers:
 - smarterclayton
 title: Running ZooKeeper, A Distributed System Coordinator
 content_template: templates/tutorial
+weight: 40
 ---
 
 {{% capture overview %}}