misplaced quote in whatsnew (#3889)

Author: max-sixty

doc/whats-new.rst

@@ -789,12 +789,13 @@ Bug fixes
 - Plots in 2 dimensions (pcolormesh, contour) now allow to specify levels as numpy
   array (:issue:`3284`). By `Mathias Hauser <https://github.com/mathause>`_.
 - Fixed bug in :meth:`DataArray.quantile` failing to keep attributes when
-  `keep_attrs` was True (:issue:`3304`). By David Huard `<https://github.com/huard>`_.
+  `keep_attrs` was True (:issue:`3304`). By `David Huard <https://github.com/huard>`_.
 
 Documentation
 ~~~~~~~~~~~~~
 
-- Created a `PR checklist <https://xarray.pydata.org/en/stable/contributing.html/contributing.html#pr-checklist>`_ as a quick reference for tasks before creating a new PR
+- Created a `PR checklist <https://xarray.pydata.org/en/stable/contributing.html/contributing.html#pr-checklist>`_ 
+  as a quick reference for tasks before creating a new PR
   or pushing new commits.
   By `Gregory Gundersen <https://github.com/gwgundersen>`_.