DOC: add missing parameters to offsets class Easter (#53476)

Author: natmokval

pandas/_libs/tslibs/offsets.pyx

@@ -3817,6 +3817,17 @@ cdef class Easter(SingleConstructorOffset):
 
     Right now uses the revised method which is valid in years 1583-4099.
 
+    Parameters
+    ----------
+    n : int, default 1
+        The number of years represented.
+    normalize : bool, default False
+        Normalize start/end dates to midnight before generating date range.
+
+    See Also
+    --------
+    :class:`~pandas.tseries.offsets.DateOffset` : Standard kind of date increment.
+
     Examples
     --------
     >>> ts = pd.Timestamp(2022, 1, 1)