Link fixes

docs/en/operations/_category_.yml

@@ -2,7 +2,3 @@ position: 70
 label: 'Operations'
 collapsible: true
 collapsed: true
-link:
-  type: generated-index
-  title: Operations
-  slug: /en/operations

docs/en/operations/backup.md

@@ -1,5 +1,6 @@
 ---
 slug: /en/operations/backup
+description: In order to effectively mitigate possible human errors, you should carefully prepare a strategy for backing up and restoring your data.
 ---
 
 # Backup and Restore

docs/en/operations/caches.md

@@ -3,6 +3,7 @@ slug: /en/operations/caches
 sidebar_position: 65
 sidebar_label: Caches
 title: "Cache Types"
+description: When performing queries, ClickHouse uses different caches.
 ---
 
 When performing queries, ClickHouse uses different caches.

docs/en/operations/monitoring.md

@@ -2,6 +2,7 @@
 slug: /en/operations/monitoring
 sidebar_position: 45
 sidebar_label: Monitoring
+description: You can monitor the utilization of hardware resources and also ClickHouse server metrics.
 ---
 
 # Monitoring

docs/en/operations/server-configuration-parameters/settings.md

@@ -2,6 +2,7 @@
 slug: /en/operations/server-configuration-parameters/settings
 sidebar_position: 57
 sidebar_label: Server Settings
+description: This section contains descriptions of server settings that cannot be changed at the session or query level.
 ---
 
 # Server Settings
@@ -1025,7 +1026,7 @@ If the number of **idle** threads in the Backups IO Thread pool exceeds `max_bac
 Possible values:
 
 -   Positive integer.
--   Zero. 
+-   Zero.
 
 Default value: `0`.