editorial fix

Author: Eduardo Fullea

index.html

@@ -584,7 +584,7 @@ <h3>Steps</h3>
       in the <code>text</code> parameter to the number of the recipient
       indicated in the <code>to</code> parameter, using the proper service as
       described above.
-      <li><a>Queue a task</a> to monitor SMS sending progress.
+      <li><a>Queue a task</a> to monitor SMS submission process.
      </ol>
      <li>Let <var>future</var> be a new <code>Future</code> object and
      <var>resolver</var> its associated <code>resolver</code>