add info to whatsnew.rst file including a note to the bug and contributor's name

mayudong · mayudong · commit 41628c620097 · 2016-04-12T10:58:14.000-07:00
diff --git a/docs/sphinx/source/whatsnew/v0.3.1.txt b/docs/sphinx/source/whatsnew/v0.3.1.txt
@@ -14,9 +14,11 @@ Enhancements
 
 Bug fixes
 ~~~~~~~~~
-
+* Fixed the azimuth calculation of rotated PV panel in function
+  pvlib.tracking.singleaxis(...) so that the results are consistent
+  with PVsyst
 
 
 Contributors
 ~~~~~~~~~~~~
-
+* Yudong Ma
