Mark CCR as beta in the docs

This commit marks CCR as beta in the docs. This beta label is applied to
all CCR pages.

docs/reference/ccr/apis/auto-follow/delete-auto-follow-pattern.asciidoc

@@ -6,6 +6,8 @@
 <titleabbrev>Delete Auto-Follow Pattern</titleabbrev>
 ++++
 
+beta[]
+
 Delete auto-follow patterns.
 
 ==== Description

docs/reference/ccr/apis/auto-follow/get-auto-follow-pattern.asciidoc

@@ -6,6 +6,8 @@
 <titleabbrev>Get Auto-Follow Pattern</titleabbrev>
 ++++
 
+beta[]
+
 Get auto-follow patterns.
 
 ==== Description

docs/reference/ccr/apis/auto-follow/put-auto-follow-pattern.asciidoc

@@ -6,6 +6,8 @@
 <titleabbrev>Create Auto-Follow Pattern</titleabbrev>
 ++++
 
+beta[]
+
 Creates an auto-follow pattern.
 
 ==== Description

docs/reference/ccr/apis/ccr-apis.asciidoc

@@ -3,6 +3,8 @@
 [[ccr-apis]]
 == Cross-cluster replication APIs
 
+beta[]
+
 You can use the following APIs to perform {ccr} operations.
 
 [float]

docs/reference/ccr/apis/follow/get-follow-stats.asciidoc

@@ -6,6 +6,8 @@
 <titleabbrev>Get Follower Stats</titleabbrev>
 ++++
 
+beta[]
+
 Get follower stats.
 
 ==== Description

docs/reference/ccr/apis/follow/post-pause-follow.asciidoc

@@ -6,6 +6,8 @@
 <titleabbrev>Pause Follower</titleabbrev>
 ++++
 
+beta[]
+
 Pauses a follower index.
 
 ==== Description

docs/reference/ccr/apis/follow/post-resume-follow.asciidoc

@@ -6,6 +6,8 @@
 <titleabbrev>Resume Follower</titleabbrev>
 ++++
 
+beta[]
+
 Resumes a follower index.
 
 ==== Description

docs/reference/ccr/apis/follow/post-unfollow.asciidoc

@@ -6,6 +6,8 @@
 <titleabbrev>Unfollow</titleabbrev>
 ++++
 
+beta[]
+
 Converts a follower index to a regular index.
 
 ==== Description

docs/reference/ccr/apis/follow/put-follow.asciidoc

@@ -6,6 +6,8 @@
 <titleabbrev>Create Follower</titleabbrev>
 ++++
 
+beta[]
+
 Creates a follower index.
 
 ==== Description

docs/reference/ccr/apis/get-ccr-stats.asciidoc

@@ -6,6 +6,8 @@
 <titleabbrev>Get Follower Stats</titleabbrev>
 ++++
 
+beta[]
+
 Get {ccr} stats.
 
 ==== Description

docs/reference/ccr/getting-started.asciidoc

@@ -3,4 +3,5 @@
 [[ccr-getting-started]]
 == Getting Started
 
+beta[]
 This is the getting started section of the {ccr} docs.

docs/reference/ccr/index.asciidoc

@@ -3,6 +3,8 @@
 [[xpack-ccr]]
 = Cross-cluster replication
 
+beta[]
+
 [partintro]
 --
 

docs/reference/ccr/overview.asciidoc

@@ -3,4 +3,5 @@
 [[ccr-overview]]
 == Overview
 
+beta[]
 This is the overview section of the {ccr} docs.