fix appveyor badge

README.rst

@@ -3,7 +3,7 @@ Search Names: Search a long list of names in a large text corpus
 
 .. image:: https://travis-ci.org/appeler/search_names.svg?branch=master
     :target: https://travis-ci.org/appeler/search_names
-.. image:: https://ci.appveyor.com/api/projects/status/v3ao00u6uccnpi0n?svg=true
+.. image:: https://ci.appveyor.com/api/projects/status/lv4f7r8t2fat4kqp?svg=true
     :target: https://ci.appveyor.com/project/soodoku/search-names
 .. image:: https://img.shields.io/pypi/v/search-names.svg
     :target: https://pypi.python.org/pypi/search-names