Updated Using S3Proxy in Java projects (markdown)

Using-S3Proxy-in-Java-projects.md

@@ -95,7 +95,7 @@ public void example() {
             .build();
     s3Client.createBucket("test_bucket");
     
-    //perform some operation in your code that you want to test, using the above client
+    //exercise your code that you want to test, using the above client
     myS3Uploader.uploadFile(s3Client, someFile);
 
     //verify the expected results of the above code