Update api-dcr-reference.md

Author: yelevin

articles/sentinel/api-dcr-reference.md

@@ -29,9 +29,9 @@ PUT https://management.azure.com/subscriptions/aaaaaaaa-bbbb-cccc-dddd-eeeeeeeee
 
 #### Syslog/CEF DCR creation request body
 
-The following is an example of a DCR creation request. For each stream—you can have several in one DCR—change the value of the `"Streams"` field according to the source of the messages you want to ingest:
+The following is an example of a DCR creation request. For each data source stream—you can have several in one DCR—change the value of the `"streams"` field in the `"dataSources"` section according to the source of the messages you want to ingest:
 
-| Log source | `"Streams"` field value |
+| Log source | `"streams"` field value |
 | --- | --- |
 | **Syslog** | `"Microsoft-Syslog"` |
 | **CEF** | `"Microsoft-CommonSecurityLog"` |