Update release-notes-big-data-cluster.md

Author: mihaelablendea

docs/big-data-cluster/release-notes-big-data-cluster.md

@@ -140,13 +140,13 @@ SQL Server 2019 General Distribution Release 1 (GDR1) - introduces general avail
 
 ## Known issues
 
-### Credentials for accessing services through gateway endpoint
+### Different credentials for accessing services through gateway endpoint 
 
 - **Affected releases**: New clusters deployed starting with CU5.
 
-- **Issue and customer impact**: For new big data clusters deployed using SQL Server 2019 CU5, gateway username is not **root**. If the application used to connect to gateway endpoint is using the wrong credentials, you will see an authentication error. As a result of running applications within the big data cluster as non-root user (a new default behavior starting with SQL Server 2019 CU5 release, when you deploy a new big data cluster using CU5, the username for the gateway endpoint is based on the value passed through **AZDATA_USERNAME** environment variable. It is the same username used for the controller and SQL Server endpoints. This is only impacting new deployments, existing big data clusters deployed with any of the previous releases will continue to use **root**. There is no impact to credentials when the cluster is deployed to use Active Directory authentication. 
+- **Issue and customer impact**: For new big data clusters deployed using SQL Server 2019 CU5, gateway username is not **root**. If the application used to connect to gateway endpoint is using the wrong credentials, you will see an authentication error. This change is a result of running applications within the big data cluster as non-root user (a new default behavior starting with SQL Server 2019 CU5 release, when you deploy a new big data cluster using CU5, the username for the gateway endpoint is based on the value passed through **AZDATA_USERNAME** environment variable. It is the same username used for the controller and SQL Server endpoints. This is only impacting new deployments, existing big data clusters deployed with any of the previous releases will continue to use **root**. There is no impact to credentials when the cluster is deployed to use Active Directory authentication. 
 
-- **Workaround**: Azure Data Studio will handle the credentials change transparently for the connection made to gateway to enable HDFS browsing experience in the ObjectExplorer. You must install [latest Azure Data Studio insiders build](../azure-data-studio/download-azure-data-studio.md#download-insiders-build-of-azure-data-studio) that includes the necessary changes that address this use case.
+- **Workaround**: Azure Data Studio will handle the credentials change transparently for the connection made to gateway to enable HDFS browsing experience in the ObjectExplorer. You must install [latest Azure Data Studio release](../azure-data-studio/download-azure-data-studio.md) that includes the necessary changes that address this use case.
 For other scenarios where  you must provide credentials for accessing service through the gateway (e.g. logging in with `azdata`, accessing web dashboards for Spark), you must ensure the correct credentials are used. If you are targeting an existing cluster deployed before CU5 you will continue using **root** username to connect to gateway, even after upgrading the cluster to CU5. If you deploy a new cluster using CU5 build, log in by providing the username corresponding to **AZDATA_USERNAME** environment variable.
 
 ### Pods and nodes metrics not being collected