Fix typo: pre-pending -> prepending

Author: changeworld

articles/synapse-analytics/sql-data-warehouse/sql-data-warehouse-develop-user-defined-schemas.md

@@ -39,7 +39,7 @@ If user-defined schemas have not been used previously, then you have a clean sla
 If schemas have already been used, then you have a few options:
 
 - Remove the legacy schema names and start fresh.
-- Retain the legacy schema names by pre-pending the legacy schema name to the table name.
+- Retain the legacy schema names by prepending the legacy schema name to the table name.
 - Retain the legacy schema names by implementing views over the table in an extra schema to re-create the old schema structure.
 
 > [!NOTE]
@@ -66,7 +66,7 @@ CREATE TABLE [edw].[customer] -- create data warehouse tables in the edw schema
 );
 ```
 
-Keep legacy schema names by pre-pending them to the table name. Use schemas for the workload boundary:
+Keep legacy schema names by prepending them to the table name. Use schemas for the workload boundary:
 
 ```sql
 CREATE SCHEMA [stg]; -- stg defines the staging boundary