Title was missing a word (#1537) (#1538)

Cherry-picked from #1537

Co-authored-by: Therese Magnusson <[email protected]>

Author: renetapopova

modules/ROOT/pages/database-administration/standard-databases/manage-databases.adoc

@@ -437,7 +437,7 @@ SHOW DATABASES YIELD name
 ----
 
 [[manage-databases-existing]]
-=== Use `IF EXISTS` or `OR REPLACE` when creating databases
+=== Use `IF NOT EXISTS` or `OR REPLACE` when creating databases
 
 The `CREATE DATABASE` command is optionally idempotent, with the default behavior to fail with an error if the database already exists.
 There are two ways to circumvent this behavior.