updatedi ndex

Author: Tsung-Wei Huang

index.html

@@ -82,7 +82,7 @@
         <h1><b>Taskflow </b><img src="images/logo.png" alt="Logo" style="width:2.5rem;"></h1>
         <blockquote class="blockquote">
           <p class="mb-0">A General-purpose Task-parallel Programming System</p>
-          <footer class="blockquote-footer"><cite style="color:#f5f5f5">write parallel programs with high performance and simultaneous high productivity</cite></footer>
+          <footer class="blockquote-footer"><cite style="color:#f5f5f5">write high-performance task-parallel programs with high programming productivity</cite></footer>
         </blockquote>
 
         <p><a class="btn btn-primary btn-lg mr-2 mt-2" href="https://github.com/taskflow/taskflow" role="button">GitHub&raquo;</a>