docs: Improvements

Author: Pankaj Agrawal

docs/utilities/sqs_large_message_handling.md

@@ -182,9 +182,9 @@ processing.
     }
     ```
 
-## Passing custom S3Client
+## Overriding the default S3Client
 
-If you need to pass custom S3Client such as region to the SDK, you can pass your own `S3Client` to be used by utility either for
+If you require customisations to the default S3Client, you can create your own `S3Client` and pass it to be used by utility either for
 **[SqsLargeMessage annotation](#lambda-handler)**, or **[SqsUtils Utility API](#utility)**.
 
 === "App.java"

powertools-sqs/src/main/java/software/amazon/lambda/powertools/sqs/SqsUtils.java

@@ -99,8 +99,8 @@ public static void overrideSqsClient(SqsClient client) {
     }
 
     /**
-     * Provides ability to set default {@link S3Client} to be used by utility.
-     * If no default configuration is provided, client is instantiated via {@link S3Client#create()}
+     * By default, the S3Client is instantiated via {@link S3Client#create()}.
+     * This method provides the ability to override the S3Client with your own custom version.
      *
      * @param s3Client {@link S3Client} to be used by utility
      */