DOC: update appveyor account

Author: sjsrey

README.rst

@@ -4,8 +4,8 @@ Python Spatial Analysis Library Core
 .. image:: https://travis-ci.org/pysal/libpysal.svg
    :target: https://travis-ci.org/pysal/libpysal
 
-.. image:: https://ci.appveyor.com/api/projects/status/db18n032qo49xwlb/branch/master?svg=true
-   :target: https://ci.appveyor.com/project/SergeRey/libpysal/branch/master
+.. image:: https://ci.appveyor.com/api/projects/status/1dg7939hqjx64ta4?svg=true
+   :target: https://ci.appveyor.com/project/pysal/libpysal
 
 .. image:: https://codecov.io/gh/pysal/libpysal/branch/master/graph/badge.svg
     :target: https://codecov.io/gh/pysal/libpysal