Update README.md

Author: zapek

README.md

@@ -10,16 +10,16 @@ How to use
 ----------
 Simply copy WorkerFragment.java into your project, then on your Activity's onCreate() do this:
 
-    this.workerFragment = WorkerFragment.getWorkerFragment(this.getSupportFragmentManager());
+    this.workerFragment = WorkerFragment.getWorkerFragment(this);
 
-If savedInstanceState == null, this is how your start your IntentService:
+If savedInstanceState == null, you start your IntentService to do some background work:
 
     Intent exampleIntent = new Intent(this, ExampleService.class);
     exampleIntent.setAction(ExampleService.ACTION_GET_HELLO);
     this.workerFragment.putReceiver(exampleIntent); /* this sets the WorkerFragment as receiver */
     this.startService(exampleIntent);
 
-Then you implement the WorkerFragment.WorkerFragmentReceiver interface in your Activity:
+Then you implement the WorkerFragment.WorkerFragmentReceiver interface in your Activity to handle the result:
 
     @Override
     public void onReceiveResult(int resultCode, Bundle resultData) {
@@ -32,7 +32,7 @@ Then you implement the WorkerFragment.WorkerFragmentReceiver interface in your A
         break;
     }
 
-Now in your service, sending your result is as simple as:
+Now in your IntentService, sending your result is as simple as:
 
     Bundle result = new Bundle();
     result.putString(KEY_RESULT, "hello world!");