Add page about backups (github#254)

* Add page about backups

* Edits per feedback

Author: Loquacity

timescale-forge/backup-restore-cloud.md

@@ -0,0 +1,21 @@
+# Backup and restore
+Timescale Cloud has a range of automated backup and restore mechanisms. All
+automated backups in Timescale Cloud are created using the `pgbackrest` tool.
+There is no need for you to manually perform backups for your Timescale Cloud
+service.
+
+Timescale Cloud automatically creates one full backup every week. We also create
+incremental backups every day, which store any changes since the last full
+backup. The two most recent full backups are stored securely on an Amazon S3
+service, along with the most recent incremental backups, and a write-ahead log
+(WAL) of all the changes that have occurred. This means that you always have a
+backup for the current and the previous week, and we can restore your backup to
+any point during that timeframe.  
+
+When you delete an instance, we retain a backup of the instance for seven days.
+
+If you need to restore your database from a backup, please
+[contact support][support].
+
+
+[support]: https://www.timescale.com/support

timescale-forge/page-index/page-index.js

@@ -39,6 +39,10 @@ module.exports = [
       {
         title: "Disk management",
         href: "disk-management"
+      },
+      {
+        title: "Backup and restore",
+        href: "backup-restore-cloud"
       }
     ]
   }