Update documentation about source_catalog_id and its reference to act…

…or_catalog table

docs/understanding-airbyte/database-data-catalog.md

@@ -34,7 +34,7 @@
 * `connection`
   * Each record in this table configures a connection (`source_id`, `destination_id`, and relevant configuration).
   * The `resource_requirements` field sets a default resource requirement for the connection. This overrides the default we set for all connector definitions and the default set for the connector definitions. The column is a JSON blob with the schema defined in [ResourceRequirements.yaml](https://github.com/airbytehq/airbyte/blob/master/airbyte-config-oss/config-models-oss/src/main/resources/types/ResourceRequirements.yaml).
-  * The `source_catalog_id` column is a foreign key to the `sourc_catalog` table and represents the catalog that was used to configure the connection. This should not be confused with the `catalog` column which contains the [ConfiguredCatalog](airbyte-protocol.md#catalog) for the connection.
+  * The `source_catalog_id` column is a foreign key that refers to `id` column in `actor_catalog` table and represents the catalog that was used to configure the connection. This should not be confused with the `catalog` column which contains the [ConfiguredCatalog](airbyte-protocol.md#catalog) for the connection.
   * The `schedule_type` column defines what type of schedule is being used. If the `type` is manual, then `schedule_data` will be null. Otherwise, `schedule_data` column is a JSON blob with the schema of [StandardSync#scheduleData](https://github.com/airbytehq/airbyte/blob/master/airbyte-config-oss/config-models-oss/src/main/resources/types/StandardSync.yaml#L74) that defines the actual schedule. The columns `manual` and `schedule` are deprecated and should be ignored (they will be dropped soon).
   * The `namespace_type` column configures whether the namespace for the connection should use that defined by the source, the destination, or a user-defined format (`custom`). If `custom` the `namespace_format` column defines the string that will be used as the namespace.
   * The `status` column describes the activity level of the connector: `active` - current schedule is respected, `inactive` - current schedule is ignored (the connection does not run) but it could be switched back to active, and `deprecated` - the connection is permanently off (cannot be moved to active or inactive).