Fix leap year condition in monthly means example (#3464)

* Typo correction in docs (#3387)

* Update terminology.rst (#3455)

Fixed broken link

* Error in leap year?

I've tried this script; however, it adds +1 to all months of the leap years. It sounds like an error, or I am wrong? So I wrote the condition "and month == 2" line 86 so that only the month of February gets +1.

* Fix leap year (#3464)

* Update doc/whats-new.rst

Co-Authored-By: Deepak Cherian <[email protected]>

Author: mickaellalande

doc/examples/monthly-means.rst

@@ -83,7 +83,7 @@ the ``calendar.month_range`` function.
 
         for i, (month, year) in enumerate(zip(time.month, time.year)):
             month_length[i] = cal_days[month]
-            if leap_year(year, calendar=calendar):
+            if leap_year(year, calendar=calendar) and month == 2:
                 month_length[i] += 1
         return month_length
 

doc/whats-new.rst

@@ -67,7 +67,7 @@ Bug fixes
 
 Documentation
 ~~~~~~~~~~~~~
-
+- Fix leap year condition in example (http://xarray.pydata.org/en/stable/examples/monthly-means.html) by `Mickaël Lalande <https://github.com/mickaellalande>`_.
 - Fix the documentation of :py:meth:`DataArray.resample` and
   :py:meth:`Dataset.resample` and explicitly state that a
   datetime-like dimension is required. (:pull:`3400`)