Merge pull request #9257 from PaddlePaddle/shanyi15-patch-3

Update index_en.rst

Author: shanyi15

doc/v2/faq/index_en.rst

@@ -1,7 +1,8 @@
 FAQ
 ====
 
- 
+This document provides answers to some of the frequently asked questions about PaddlePaddle. If you have a question that is not covered here, please go to `PaddlePaddle Community <https://github.com/PaddlePaddle/Paddle/issues>`_ , to find an answer or submit new `issue <https://github.com/PaddlePaddle/Paddle/issues/new>`_  , we will reply in time.
+
 ..  toctree::
   :maxdepth: 1