Specify allowed id format for datasource import (#1024)

Author: jtama

docs/resources/data_source.md

@@ -115,6 +115,9 @@ resource "grafana_data_source" "prometheus" {
 Import is supported using the following syntax:
 
 ```shell
-terraform import grafana_data_source.by_integer_id {{datasource id}}
-terraform import grafana_data_source.by_uid {{datasource uid}}
+terraform import grafana_data_source.by_integer_id {{datasource_id}} # To use the default provider org
+terraform import grafana_data_source.by_uid {{datasource_uid}} # To use the default provider org
+
+terraform import grafana_data_source.by_integer_id {{org_id}}:{{datasource_id}} # When "org_id" is set on the resource
+terraform import grafana_data_source.by_uid {{org_id}}:{{datasource_uid}} # When "org_id" is set on the resource
 ```

examples/resources/grafana_data_source/import.sh

@@ -1,2 +1,5 @@
-terraform import grafana_data_source.by_integer_id {{datasource id}}
-terraform import grafana_data_source.by_uid {{datasource uid}}
+terraform import grafana_data_source.by_integer_id {{datasource_id}} # To use the default provider org
+terraform import grafana_data_source.by_uid {{datasource_uid}} # To use the default provider org
+
+terraform import grafana_data_source.by_integer_id {{org_id}}:{{datasource_id}} # When "org_id" is set on the resource
+terraform import grafana_data_source.by_uid {{org_id}}:{{datasource_uid}} # When "org_id" is set on the resource