DOC: add contributors to 1.3 release notes (#41922)

simonjayhawkins · web-flow · commit bf157517d089 · 2021-06-11T11:14:01.000+01:00
diff --git a/doc/source/whatsnew/v1.3.0.rst b/doc/source/whatsnew/v1.3.0.rst
@@ -1199,3 +1199,5 @@ Other
 
 Contributors
 ~~~~~~~~~~~~
+
+.. contributors:: v1.2.4..v1.3.0|HEAD
