Change order/section titles in installation docs

content/rancher/v2.x/en/installation/install-rancher-on-k8s/_index.md

@@ -1,7 +1,7 @@
 ---
-title: Install Rancher on a Kubernetes Cluster
+title: Install/Upgrade Rancher on a Kubernetes Cluster
 description: Learn how to install Rancher in development and production environments. Read about single node and high availability installation
-weight: 3
+weight: 2
 aliases:
   - /rancher/v2.x/en/installation/k8s-install/
   - /rancher/v2.x/en/installation/k8s-install/helm-rancher

content/rancher/v2.x/en/installation/install-rancher-on-linux/_index.md

@@ -1,6 +1,6 @@
 ---
-title: Install Rancher on a Linux OS
-weight: 2
+title: Install/Upgrade Rancher on a Linux OS
+weight: 3
 ---
 
 _Available as of Rancher v2.5.4_