add doc_type

Author: Blargian

docs/operations_/backup_restore/00_overview.md

@@ -3,6 +3,7 @@ description: 'Overview of ClickHouse backup and restore'
 sidebar_label: 'Overview'
 slug: /operations/backup/overview
 title: 'Backup and Restore in ClickHouse'
+doc_type: 'reference'
 ---
 
 import GenericSettings from '@site/docs/operations_/backup_restore/_snippets/_generic_settings.md';

docs/operations_/backup_restore/01_local_disk.md

@@ -3,6 +3,7 @@ description: 'Details backup/restore to or from a local disk'
 sidebar_label: 'Local disk / S3 disk'
 slug: /operations/backup/disk
 title: 'Backup and Restore in ClickHouse'
+doc_type: 'guide'
 ---
 
 import GenericSettings from '@site/docs/operations_/backup_restore/_snippets/_generic_settings.md';

docs/operations_/backup_restore/02_s3_endpoint.md

@@ -3,6 +3,7 @@ description: 'Overview of ClickHouse backup and restore'
 sidebar_label: 'S3 endpoint'
 slug: /operations/backup/s3_endpoint
 title: 'Backup and restore to/from an S3 endpoint'
+doc_type: 'guide'
 ---
 
 import Syntax from '@site/docs/operations_/backup_restore/_snippets/_syntax.md';

docs/operations_/backup_restore/03_azure_blob_storage.md

@@ -3,6 +3,7 @@ description: 'Details backup/restore to or from an Azure Blob Storage endpoint'
 sidebar_label: 'AzureBlobStorage'
 slug: /operations/backup/azure
 title: 'Backup and restore to/from Azure Blob Storage'
+doc_type: 'guide'
 ---
 
 import Syntax from '@site/docs/operations_/backup_restore/_snippets/_syntax.md';

docs/operations_/backup_restore/04_alternative_methods.md

@@ -3,6 +3,7 @@ description: 'Details alternative backup or restore methods'
 sidebar_label: 'Alternative methods'
 slug: /operations/backup/alternative_methods
 title: 'Alternative backup or restore methods'
+doc_type: 'reference'
 ---
 
 # Alternative backup methods