Docs: add link to supabase db dump in PITR guide (supabase#37541)

Author: monicakh

apps/docs/content/guides/platform/backups.mdx

@@ -131,7 +131,7 @@ If you enable PITR, Daily Backups will no longer be taken. PITR provides a finer
 
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-When you disable PITR, all new backups will still be taken as physical backups only. Physical backups can still be used for restoration, but they are not available for direct download. If you need to download a backup after PITR is disabled, you’ll need to take a manual logical backup using the Supabase CLI or pg_dump.
+When you disable PITR, all new backups will still be taken as physical backups only. Physical backups can still be used for restoration, but they are not available for direct download. If you need to download a backup after PITR is disabled, you’ll need to take a manual [logical backup using the Supabase CLI or pg_dump](https://supabase.com/docs/guides/platform/migrating-within-supabase/backup-restore#backup-database-using-the-cli).
 
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