Apply suggestions from code review

Co-authored-by: Rebecca Szper <[email protected]>

v2/googlecloud-to-googlecloud/src/main/java/com/google/cloud/teleport/v2/templates/TextToBigQueryStreaming.java

@@ -479,7 +479,7 @@ public interface TextToBigQueryStreamingOptions
         optional = true,
         description = "The dead-letter table name to output failed messages to BigQuery",
         helpText =
-            "Table for messages that failed to reach the output table. If it doesn't exist, it is created during "
+            "Table for messages that failed to reach the output table. If a table doesn't exist, it is created during "
                 + "pipeline execution. If not specified, `<outputTableSpec>_error_records` is used.",
         example = "<PROJECT_ID>:<DATASET_NAME>.<TABLE_NAME>")
     String getOutputDeadletterTable();