DOCSP-27080 document support for the new region (#274)

Author: kanchana-mongodb

source/administration/view-datalake-pipelines.txt

@@ -64,12 +64,12 @@ View {+adl+} Pipelines from the |service| UI
            - Actions you can take for each pipeline. You can click 
              one of the following: 
 
-             - :icon-fa4:`paused` to pause data ingestion and 
+             - :guilabel:`||` to pause data ingestion and 
                :icon-fa5:`arrow-right` to resume data ingestion. You 
                can't pause on-demand ingestion of data.
-             - :icon:`pencil` to edit the data ingestion schedule for 
+             - :icon-fa4:`pencil` to edit the data ingestion schedule for 
                the pipeline. 
-             - :icon-fa4:`fa4-ellipsis-v` to do the following:
+             - :icon-fa4:`ellipsis-v` to do the following:
 
                - Delete a pipeline. You can't undo this action. If you 
                  delete a pipeline, {+adl+} deletes the datasets, 

source/includes/list-table-supported-aws-regions.rst

@@ -26,5 +26,8 @@
    * - Mumbai, India
      - ap-south-1
 
+   * - Singapore
+     - ap-southeast-1
+
    * - Sydney, Australia
      - ap-southeast-2