Fix links in README

Author: liZe

README.rst

@@ -10,10 +10,10 @@ based on the more recent `CSS Syntax Level 3`_ specification.
 * BSD licensed
 * For Python 2.6, 2.7, or 3.2+ (tested on CPython and PyPy)
 * Latest documentation: http://pythonhosted.org/tinycss2/
-* Source code and issue tracker: https://github.com/SimonSapin/tinycss2
+* Source code and issue tracker: https://github.com/Kozea/tinycss2
 * PyPI releases: https://pypi.python.org/pypi/tinycss2/
 * Continuous integration: |travis|
 
-.. |travis| image:: https://travis-ci.org/SimonSapin/tinycss2.svg?branch=master
-    :target: https://travis-ci.org/SimonSapin/tinycss2
-    :alt: https://travis-ci.org/SimonSapin/tinycss2
+.. |travis| image:: https://travis-ci.org/Kozea/tinycss2.svg?branch=master
+    :target: https://travis-ci.org/Kozea/tinycss2
+    :alt: https://travis-ci.org/Kozea/tinycss2