Update Protect pages with tier info

Add tier badges to Protect-related doc pages

doc/user/project/clusters/protect/container_host_security/index.md

@@ -4,7 +4,7 @@ group: Container Security
 info: To determine the technical writer assigned to the Stage/Group associated with this page, see https://about.gitlab.com/handbook/engineering/ux/technical-writing/#designated-technical-writers
 ---
 
-# Container Host Security
+# Container Host Security **(FREE)**
 
 Container Host Security in GitLab provides Intrusion Detection and Prevention capabilities that can
 monitor and (optionally) block activity inside the containers themselves. This is done by leveraging

doc/user/project/clusters/protect/container_host_security/quick_start_guide.md

@@ -4,7 +4,7 @@ group: Container Security
 info: To determine the technical writer assigned to the Stage/Group associated with this page, see https://about.gitlab.com/handbook/engineering/ux/technical-writing/#designated-technical-writers
 ---
 
-# Getting started with Container Host Security
+# Getting started with Container Host Security **(FREE)**
 
 The following steps are recommended for installing Container Host Security.
 

doc/user/project/clusters/protect/container_network_security/index.md

@@ -4,7 +4,7 @@ group: Container Security
 info: To determine the technical writer assigned to the Stage/Group associated with this page, see https://about.gitlab.com/handbook/engineering/ux/technical-writing/#designated-technical-writers
 ---
 
-# Container Network Security
+# Container Network Security **(FREE)**
 
 Container Network Security in GitLab provides basic firewall functionality by leveraging Cilium
 NetworkPolicies to filter traffic going in and out of the cluster as well as traffic between pods

doc/user/project/clusters/protect/container_network_security/quick_start_guide.md

@@ -4,7 +4,7 @@ group: Container Security
 info: To determine the technical writer assigned to the Stage/Group associated with this page, see https://about.gitlab.com/handbook/engineering/ux/technical-writing/#designated-technical-writers
 ---
 
-# Getting started with Container Network Security
+# Getting started with Container Network Security **(FREE)**
 
 The following steps are recommended for installing Container Network Security.
 
@@ -58,7 +58,7 @@ use both methods simultaneously, when the application project pipeline runs the
 NetworkPolicy in the `auto-deploy-values.yaml` file may override policies configured in the UI
 editor.
 
-## Monitoring throughput `**(ULTIMATE)**`
+## Monitoring throughput **(ULTIMATE)**
 
 To view statistics for Container Network Security, you must follow the installation steps above and
 configure GitLab integration with Prometheus. Also, if you use custom Helm values for Cilium, you

doc/user/project/clusters/protect/index.md

@@ -4,7 +4,7 @@ group: Container Security
 info: To determine the technical writer assigned to the Stage/Group associated with this page, see https://about.gitlab.com/handbook/engineering/ux/technical-writing/#designated-technical-writers
 ---
 
-# Protecting your deployed applications
+# Protecting your deployed applications **(FREE)**
 
 GitLab makes it straightforward to protect applications deployed in [connected Kubernetes clusters](index.md).
 These protections are available in the Kubernetes network layer and in the container itself. At