DOC change doc link about testing from stable (nose) to dev (pytest)

qinhanmin2014 · qinhanmin2014 · commit 873da7a80390 · 2017-11-25T21:50:51.000+08:00
We have changed to pytest but the stable doc is about nose. Already gain approval from @lesteve in #9840. Nothing to check so I push directly.
diff --git a/README.rst b/README.rst
@@ -114,7 +114,7 @@ source directory (you will need to have the ``pytest`` package installed)::
 
     pytest sklearn
 
-See the web page http://scikit-learn.org/stable/developers/advanced_installation.html#testing
+See the web page http://scikit-learn.org/dev/developers/advanced_installation.html#testing
 for more information.
 
     Random number generation can be controlled during testing by setting
