list name is deleteDatasources, not delete_datasources

fixes https://github.com/grafana/grafana/issues/12293

docs/sources/administration/provisioning.md

@@ -76,7 +76,7 @@ Saltstack | [https://github.com/salt-formulas/salt-formula-grafana](https://gith
 
 > This feature is available from v5.0
 
-It's possible to manage datasources in Grafana by adding one or more yaml config files in the [`provisioning/datasources`](/installation/configuration/#provisioning) directory. Each config file can contain a list of `datasources` that will be added or updated during start up. If the datasource already exists, Grafana will update it to match the configuration file. The config file can also contain a list of datasources that should be deleted. That list is called `delete_datasources`. Grafana will delete datasources listed in `delete_datasources` before inserting/updating those in the `datasource` list.
+It's possible to manage datasources in Grafana by adding one or more yaml config files in the [`provisioning/datasources`](/installation/configuration/#provisioning) directory. Each config file can contain a list of `datasources` that will be added or updated during start up. If the datasource already exists, Grafana will update it to match the configuration file. The config file can also contain a list of datasources that should be deleted. That list is called `deleteDatasources`. Grafana will delete datasources listed in `deleteDatasources` before inserting/updating those in the `datasource` list.
 
 ### Running Multiple Grafana Instances