diff --git a/docs/About/contributors.rst b/docs/About/contributors.rst
index 9e21963..e07fbff 100644
--- a/docs/About/contributors.rst
+++ b/docs/About/contributors.rst
@@ -1,30 +1,30 @@
 All Contributors
 ================
 
-+----------------+------------------------------------------------+
-| Contributor    | Homepage                                       |
-+================+================================================+
-| Zhi-Hao Tan    | `Zhi-Hao Tan's Homepage <http://www.lamda.nju.edu.cn/tanzh/>`_  |
-+----------------+------------------------------------------------+
-| Lan-Zhe Guo    | `Lan-Zhe Guo's Homepage <http://www.lamda.nju.edu.cn/guolz/>`_  |
-+----------------+------------------------------------------------+
-| Peng Tan       | `Peng Tan's Homepage <http://www.lamda.nju.edu.cn/tanp/>`_   |
-+----------------+------------------------------------------------+
-| Xiao-Dong Bi   | `Xiao-Dong Bi's Homepage <http://www.lamda.nju.edu.cn/bixd/>`_   |
-+----------------+------------------------------------------------+
-| Zi-Xuan Chen   | `Zi-Xuan Chen's Homepage <http://www.lamda.nju.edu.cn/chenzx/>`_ |
-+----------------+------------------------------------------------+
-| Qin-Cheng Zheng| `Qin-Cheng Zheng's Homepage <http://www.lamda.nju.edu.cn/zhengqc/>`_|
-+----------------+------------------------------------------------+
-| Zhi Zhou       | `Zhi Zhou's Homepage <http://www.lamda.nju.edu.cn/zhouz/>`_  |
-+----------------+------------------------------------------------+
-| Yi-Xuan Jin    | `Yi-Xuan Jin's Homepage <http://www.lamda.nju.edu.cn/jinyx/>`_  |
-+----------------+------------------------------------------------+
-| Jian-Dong Liu  | `Jian-Dong Liu's Homepage <http://www.lamda.nju.edu.cn/liujd/>`_  |
-+----------------+------------------------------------------------+
-| Yi Xie         | `Yi Xie's Homepage <http://www.lamda.nju.edu.cn/xiey/>`_   |
-+----------------+------------------------------------------------+
-| Hai-Tian Liu   | `Hai-Tian Liu's Homepage <http://www.lamda.nju.edu.cn/liuht/>`_  |
-+----------------+------------------------------------------------+
-| Hao-Yi Lei     | `Hao-Yi Lei's Homepage <http://www.lamda.nju.edu.cn/leihy/>`_  |
-+----------------+------------------------------------------------+
++----------------+----------------------------------------------------------------------+
+| Contributor    | Homepage                                                             |
++================+======================================================================+
+| Zhi-Hao Tan    | `Zhi-Hao Tan's Homepage <http://www.lamda.nju.edu.cn/tanzh/>`_       |
++----------------+----------------------------------------------------------------------+
+| Lan-Zhe Guo    | `Lan-Zhe Guo's Homepage <http://www.lamda.nju.edu.cn/guolz/>`_       |
++----------------+----------------------------------------------------------------------+
+| Peng Tan       | `Peng Tan's Homepage <http://www.lamda.nju.edu.cn/tanp/>`_           |
++----------------+----------------------------------------------------------------------+
+| Xiao-Dong Bi   | `Xiao-Dong Bi's Homepage <http://www.lamda.nju.edu.cn/bixd/>`_       |
++----------------+----------------------------------------------------------------------+
+| Zi-Xuan Chen   | `Zi-Xuan Chen's Homepage <http://www.lamda.nju.edu.cn/chenzx/>`_     |
++----------------+----------------------------------------------------------------------+
+| Qin-Cheng Zheng| `Qin-Cheng Zheng's Homepage <http://www.lamda.nju.edu.cn/zhengqc/>`_ |
++----------------+----------------------------------------------------------------------+
+| Zhi Zhou       | `Zhi Zhou's Homepage <http://www.lamda.nju.edu.cn/zhouz/>`_          |
++----------------+----------------------------------------------------------------------+
+| Yi-Xuan Jin    | `Yi-Xuan Jin's Homepage <http://www.lamda.nju.edu.cn/jinyx/>`_       |
++----------------+----------------------------------------------------------------------+
+| Jian-Dong Liu  | `Jian-Dong Liu's Homepage <http://www.lamda.nju.edu.cn/liujd/>`_     |
++----------------+----------------------------------------------------------------------+
+| Yi Xie         | `Yi Xie's Homepage <http://www.lamda.nju.edu.cn/xiey/>`_             |
++----------------+----------------------------------------------------------------------+
+| Hai-Tian Liu   | `Hai-Tian Liu's Homepage <http://www.lamda.nju.edu.cn/liuht/>`_      |
++----------------+----------------------------------------------------------------------+
+| Hao-Yi Lei     | `Hao-Yi Lei's Homepage <http://www.lamda.nju.edu.cn/leihy/>`_        |
++----------------+----------------------------------------------------------------------+