fix: add missing docs

docs/data-sources/postgresflexalpha_instance.md

@@ -31,6 +31,10 @@ data "stackitprivatepreview_postgresflexalpha_instance" "example" {
 ### Read-Only
 
 - `backup_schedule` (String) The schedule for on what time and how often the database backup will be created. The schedule is written as a cron schedule.
+- `connection_info` (Attributes) The DNS name and port in the instance overview (see [below for nested schema](#nestedatt--connection_info))
+- `encryption` (Attributes) The configuration for instance's volume and backup storage encryption.
+
+⚠️ **Note:** This feature is in private preview. Supplying this object is only permitted for enabled accounts. If your account does not have access, the request will be rejected. (see [below for nested schema](#nestedatt--encryption))
 - `flavor_id` (String) The id of the instance flavor.
 - `id` (String) The ID of the instance.
 - `is_deletable` (Boolean) Whether the instance can be deleted or not.
@@ -42,6 +46,26 @@ data "stackitprivatepreview_postgresflexalpha_instance" "example" {
 - `storage` (Attributes) The object containing information about the storage size and class. (see [below for nested schema](#nestedatt--storage))
 - `version` (String) The Postgres version used for the instance. See [Versions Endpoint](/documentation/postgres-flex-service/version/v3alpha1#tag/Version) for supported version parameters.
 
+<a id="nestedatt--connection_info"></a>
+### Nested Schema for `connection_info`
+
+Read-Only:
+
+- `host` (String) The host of the instance.
+- `port` (Number) The port of the instance.
+
+
+<a id="nestedatt--encryption"></a>
+### Nested Schema for `encryption`
+
+Read-Only:
+
+- `kek_key_id` (String) The encryption-key key identifier
+- `kek_key_ring_id` (String) The encryption-key keyring identifier
+- `kek_key_version` (String) The encryption-key version
+- `service_account` (String)
+
+
 <a id="nestedatt--network"></a>
 ### Nested Schema for `network`
 

docs/resources/postgresflexalpha_instance.md

@@ -62,6 +62,7 @@ import {
 
 ### Read-Only
 
+- `connection_info` (Attributes) The DNS name and port in the instance overview (see [below for nested schema](#nestedatt--connection_info))
 - `id` (String) The ID of the instance.
 - `is_deletable` (Boolean) Whether the instance can be deleted or not.
 - `status` (String) The current status of the instance.
@@ -98,3 +99,12 @@ Required:
 - `kek_key_ring_id` (String) The encryption-key keyring identifier
 - `kek_key_version` (String) The encryption-key version
 - `service_account` (String)
+
+
+<a id="nestedatt--connection_info"></a>
+### Nested Schema for `connection_info`
+
+Read-Only:
+
+- `host` (String) The host of the instance.
+- `port` (Number) The port of the instance.