tmp add missing dot in readme

README.md

@@ -101,7 +101,7 @@ $batchConsumer = $batchConsumerFactory->create(
     $maxDuration = 60  // or when 60 seconds passes, whichever comes first.
 );
 foreach ($batchConsumer->consume() as $messageBatch) {
-    // The batch might be empty if you specified the maxDuration
+    // The batch might be empty if you specified the maxDuration.
     if ($messageBatch->isEmpty()) {
         continue;
     }