update the documentation (#144)

Author: seanzhougoogle

sqlserver-delta-plugins/docs/sqlserver-cdcSource.md

@@ -32,18 +32,19 @@ USE MyDB
 GO
 
 EXEC sys.sp_cdc_enable_table
-@source_schema = N'dbo',
-@source_name   = N'MyTable',
-@role_name     = N'MyRole',
-@supports_net_changes = 1
+@source_schema  = N'dbo',
+@source_name    = N'MyTable',
+@role_name      = N'MyRole',
+@filegroup_name = N'MyDB_CT',
+@supports_net_changes = 0
 GO
 ```
 
 #### Verify Table CDC Accessibility
 Run following query to make sure your table has CDC assess.
 ```
 -- =========
--- Verify the user of the connector have access, this query should not have empty result
+-- Verify the user (you specify in the replicator to connect to the source DB) has access, this query should not have empty result
 -- =========
 
 EXEC sys.sp_cdc_help_change_data_capture