Fix for link and note in secure clusters doc

doc/user/project/clusters/securing.md

@@ -40,6 +40,10 @@ Minimum requirements (depending on the GitLab Manage Application you want to ins
 
 ### Understanding how GitLab Managed Apps are installed
 
+NOTE: **Note:**
+These diagrams use the term _Kubernetes_ for simplicity. In practice, Sidekiq connects to a Helm
+Tiller daemon running in a pod in the cluster.
+
 You install GitLab Managed Apps from the GitLab web interface with a one-click setup process. GitLab
 uses Sidekiq (a background processing service) to facilitate this.
 
@@ -52,10 +56,6 @@ uses Sidekiq (a background processing service) to facilitate this.
     Sidekiq-->>-GitLab: Refresh UI
 ```
 
-NOTE: **Note:**
-This diagram uses the term _Kubernetes_ for simplicity. In practice, Sidekiq connects to a Helm
-Tiller daemon running in a pod in the cluster.
-
 Although this installation method is easier because it's a point-and-click action in the user
 interface, it's inflexible and hard to debug. When something goes wrong, you can't see the
 deployment logs. The Web Application Firewall feature uses this installation method.
@@ -151,4 +151,5 @@ falco:
   installed: true
 ```
 
-[Read more] about configuring Container Host Security.
+[Read more](../../clusters/applications.md#install-falco-using-gitlab-cicd)
+about configuring Container Host Security.