[DOCS] Add SLM security privileges (#62737)

Author: lcawl

x-pack/docs/en/security/authorization/privileges.asciidoc

@@ -50,9 +50,6 @@ patterns. It also includes the authority to grant the privileges necessary to
 manage follower indices and auto-follow patterns. This privilege is necessary
 only on clusters that contain follower indices.
 
-`manage_transform`::
-All operations related to managing {transforms}.
-
 `manage_ilm`::
 All {Ilm} operations related to managing policies.
 
@@ -96,10 +93,17 @@ on behalf of other users.
 All security-related operations such as CRUD operations on users and roles and
 cache clearing.
 
+`manage_slm`::
+All {slm} ({slm-init}) actions, including creating and updating policies and
+starting and stopping {slm-init}.
+
 `manage_token`::
 All security-related operations on tokens that are generated by the {es} Token
 Service.
 
+`manage_transform`::
+All operations related to managing {transforms}.
+
 `manage_watcher`::
 All watcher operations, such as putting watches, executing, activate or acknowledging.
 +
@@ -139,6 +143,10 @@ This privilege is necessary only on clusters that contain leader indices.
 All read-only {Ilm} operations, such as getting policies and checking the
 status of {Ilm}
 
+read_slm::
+All read-only {slm-init} actions, such as getting policies and checking the
+{slm-init} status.
+
 `transport_client`::
 All privileges necessary for a transport client to connect.  Required by the remote
 cluster to enable <<cross-cluster-configuring,Cross Cluster Search>>.