Update the Period.dayofyear docstring

Signed-off-by: Tushar Mittal <[email protected]>

Author: techytushar

pandas/_libs/tslibs/period.pyx

@@ -1255,6 +1255,33 @@ cdef class _Period(object):
 
     @property
     def dayofyear(self):
+        """
+        Return the day of the year.
+
+        This attribute returns the day of the year on which the particular
+        date occurs.
+
+        Returns
+        -------
+        int
+        The day of year.
+
+        See Also
+        --------
+        Period.dayofweek : Return the day of week.
+        Period.daysinmonth : Return the days in that month.
+
+        Examples
+        --------
+        >>> p = pd.Period("2015-10-23", freq='H')
+        >>> p
+        Period('2015-10-23 00:00', 'H')
+        >>> p.dayofyear
+        296
+        >>> q = pd.Period("2017-01-01", freq='H')
+        >>> q.dayofyear
+        1
+        """
         base, mult = get_freq_code(self.freq)
         return pday_of_year(self.ordinal, base)