Fix formatting

Author: DennisTraub

php/example_code/bedrock-runtime/Models/AmazonNova/Text/Converse.php

@@ -23,10 +23,10 @@ public function converse(): string
             'profile' => 'default'
         ]);
 
-// Set the model ID, e.g., Amazon Nova Lite.
+        // Set the model ID, e.g., Amazon Nova Lite.
         $modelId = 'amazon.nova-lite-v1:0';
 
-// Start a conversation with the user message.
+        // Start a conversation with the user message.
         $userMessage = "Describe the purpose of a 'hello world' program in one line.";
         $conversation = [
             [