Update README.md

Co-authored-by: Kelly-Ann Dolor <kellyanndolor@gmail.com>

Author: zongsizhang

README.md

@@ -69,7 +69,7 @@ in AWS's Oregon (`us-west-2`) region.
 > To prepare for the expansion of Wherobots Cloud to new regions and cloud providers, the `region` parameter will become mandatory in a future SDK version.
 > Before this support for new regions is added, we will release an updated version of the SDK.
 > While you can continue using an older SDK version for your development,
-> any new or existing SQL session you initialize without specifying the `region` parameter will be hosted in the `aws-us-west-2` region.
+> any SQL session you initialize without specifying the `region` parameter will be hosted in the `aws-us-west-2` region.
 
 ### Advanced parameters