Add Beta tag to features in beta

Author: MarkvanMents

content/en/docs/deployment/private-cloud/private-cloud-cluster/private-cloud-global-operator.md

@@ -3,6 +3,7 @@ title: "Running the Mendix Operator in Global Mode"
 url: /developerportal/deploy/global-operator/
 description: "Describes the processes of installing and configuring the Mendix Operator in the Private Cloud in Global mode"
 weight: 30
+beta: true
 ---
 
 {{% alert color="info" %}}

content/en/docs/deployment/private-cloud/private-cloud-license-manager.md

@@ -4,6 +4,7 @@ linktitle: "PCLM – License Manager"
 url: /developerportal/deploy/private-cloud/private-cloud-license-manager/
 description: "Describes setting up a license server and applying licenses to your Mendix app namespaces in private cloud"
 weight: 47
+beta: true
 ---
 
 {{% alert color="warning" %}}

content/en/docs/refguide/mobile/building-efficient-mobile-apps/offlinefirst-data/online-sync-mode.md

@@ -5,6 +5,7 @@ description: "Describes the online sync mode, which allows entities to be used i
 no_list: false
 description_list: true 
 weight: 20
+beta: true
 aliases:
     - /refguide/mobile/using-mobile-capabilities/offlinefirst-data/online-sync-mode/
 ---

content/en/docs/refguide/modeling/security/security-overview.md

@@ -2,10 +2,11 @@
 title: "Security Overview"
 url: /refguide/security-overview/
 weight: 20
+beta: true
 ---
 
 {{% alert color="info" %}}
-This feature is currently in beta. For more information, see [Beta and Experimental Releases](/releasenotes/beta-features/).
+This feature was introduced in Mendix 10.18 and is currently in beta. For more information, see [Beta and Experimental Releases](/releasenotes/beta-features/).
 {{% /alert %}}
 
 ## Introduction