Fix broken Sphinx Roles (pydata#10225)

* fix missing colon in sphinx roles

* add space after comma for two broken roles

Author: philipc2

doc/whats-new.rst

@@ -724,7 +724,7 @@ Bug fixes
 - Promote floating-point numeric datetimes before decoding (:issue:`9179`, :pull:`9182`).
   By `Justus Magin <https://github.com/keewis>`_.
 - Address regression introduced in :pull:`9002` that prevented objects returned
-  by py:meth:`DataArray.convert_calendar` to be indexed by a time index in
+  by :py:meth:`DataArray.convert_calendar` to be indexed by a time index in
   certain circumstances (:issue:`9138`, :pull:`9192`).
   By `Mark Harfouche <https://github.com/hmaarrfk>`_ and `Spencer Clark <https://github.com/spencerkclark>`_.
 - Fix static typing of tolerance arguments by allowing ``str`` type (:issue:`8892`, :pull:`9194`).
@@ -1698,7 +1698,7 @@ Documentation
 - Added page on the internal design of xarray objects.
   (:pull:`7991`) By `Tom Nicholas <https://github.com/TomNicholas>`_.
 - Added examples to docstrings of :py:meth:`Dataset.assign_attrs`, :py:meth:`Dataset.broadcast_equals`,
-  :py:meth:`Dataset.equals`, :py:meth:`Dataset.identical`, :py:meth:`Dataset.expand_dims`,:py:meth:`Dataset.drop_vars`
+  :py:meth:`Dataset.equals`, :py:meth:`Dataset.identical`, :py:meth:`Dataset.expand_dims`, :py:meth:`Dataset.drop_vars`
   (:issue:`6793`, :pull:`7937`) By `Harshitha <https://github.com/harshitha1201>`_.
 - Add docstrings for the :py:class:`Index` base class and add some documentation on how to
   create custom, Xarray-compatible indexes (:pull:`6975`)
@@ -1743,7 +1743,7 @@ Documentation
 ~~~~~~~~~~~~~
 
 - Added examples to docstrings of :py:meth:`Dataset.assign_attrs`, :py:meth:`Dataset.broadcast_equals`,
-  :py:meth:`Dataset.equals`, :py:meth:`Dataset.identical`, :py:meth:`Dataset.expand_dims`,:py:meth:`Dataset.drop_vars`
+  :py:meth:`Dataset.equals`, :py:meth:`Dataset.identical`, :py:meth:`Dataset.expand_dims`, :py:meth:`Dataset.drop_vars`
   (:issue:`6793`, :pull:`7937`) By `Harshitha <https://github.com/harshitha1201>`_.
 - Added page on wrapping chunked numpy-like arrays as alternatives to dask arrays.
   (:pull:`7951`) By `Tom Nicholas <https://github.com/TomNicholas>`_.

xarray/core/dataarray.py

@@ -353,7 +353,7 @@ class DataArray(
         Attributes to assign to the new instance. By default, an empty
         attribute dictionary is initialized.
         (see FAQ, :ref:`approach to metadata`)
-    indexes : py:class:`~xarray.Indexes` or dict-like, optional
+    indexes : :py:class:`~xarray.Indexes` or dict-like, optional
         For internal use only. For passing indexes objects to the
         new DataArray, use the ``coords`` argument instead with a
         :py:class:`~xarray.Coordinate` object (both coordinate variables