DOC: fix punctuation in Timestamp/Timedelta docstrings (#28053)

Author: sparalic

pandas/_libs/tslibs/nattype.pyx

@@ -551,7 +551,7 @@ class NaTType(_NaT):
         """)
     round = _make_nat_func('round',  # noqa:E128
         """
-        Round the Timestamp to the specified resolution
+        Round the Timestamp to the specified resolution.
 
         Parameters
         ----------
@@ -589,7 +589,7 @@ default 'raise'
         """)
     floor = _make_nat_func('floor',  # noqa:E128
         """
-        return a new Timestamp floored to this resolution
+        return a new Timestamp floored to this resolution.
 
         Parameters
         ----------
@@ -623,7 +623,7 @@ default 'raise'
         """)
     ceil = _make_nat_func('ceil',  # noqa:E128
         """
-        return a new Timestamp ceiled to this resolution
+        return a new Timestamp ceiled to this resolution.
 
         Parameters
         ----------
@@ -735,7 +735,7 @@ default 'raise'
         """)
     replace = _make_nat_func('replace',  # noqa:E128
         """
-        implements datetime.replace, handles nanoseconds
+        implements datetime.replace, handles nanoseconds.
 
         Parameters
         ----------

pandas/_libs/tslibs/timedeltas.pyx

@@ -1155,7 +1155,7 @@ cdef class _Timedelta(timedelta):
         """
         Format Timedelta as ISO 8601 Duration like
         ``P[n]Y[n]M[n]DT[n]H[n]M[n]S``, where the ``[n]`` s are replaced by the
-        values. See https://en.wikipedia.org/wiki/ISO_8601#Durations
+        values. See https://en.wikipedia.org/wiki/ISO_8601#Durations.
 
         .. versionadded:: 0.20.0
 
@@ -1319,7 +1319,7 @@ class Timedelta(_Timedelta):
 
     def round(self, freq):
         """
-        Round the Timedelta to the specified resolution
+        Round the Timedelta to the specified resolution.
 
         Parameters
         ----------
@@ -1337,7 +1337,7 @@ class Timedelta(_Timedelta):
 
     def floor(self, freq):
         """
-        return a new Timedelta floored to this resolution
+        return a new Timedelta floored to this resolution.
 
         Parameters
         ----------
@@ -1347,7 +1347,7 @@ class Timedelta(_Timedelta):
 
     def ceil(self, freq):
         """
-        return a new Timedelta ceiled to this resolution
+        return a new Timedelta ceiled to this resolution.
 
         Parameters
         ----------

pandas/_libs/tslibs/timestamps.pyx

@@ -441,7 +441,7 @@ class Timestamp(_Timestamp):
 
     def round(self, freq, ambiguous='raise', nonexistent='raise'):
         """
-        Round the Timestamp to the specified resolution
+        Round the Timestamp to the specified resolution.
 
         Parameters
         ----------
@@ -483,7 +483,7 @@ default 'raise'
 
     def floor(self, freq, ambiguous='raise', nonexistent='raise'):
         """
-        return a new Timestamp floored to this resolution
+        return a new Timestamp floored to this resolution.
 
         Parameters
         ----------
@@ -519,7 +519,7 @@ default 'raise'
 
     def ceil(self, freq, ambiguous='raise', nonexistent='raise'):
         """
-        return a new Timestamp ceiled to this resolution
+        return a new Timestamp ceiled to this resolution.
 
         Parameters
         ----------
@@ -556,7 +556,7 @@ default 'raise'
     @property
     def tz(self):
         """
-        Alias for tzinfo
+        Alias for tzinfo.
         """
         return self.tzinfo
 
@@ -754,7 +754,7 @@ default 'raise'
     def resolution(self):
         """
         Return resolution describing the smallest difference between two
-        times that can be represented by Timestamp object_state
+        times that can be represented by Timestamp object_state.
         """
         # GH#21336, GH#21365
         return Timedelta(nanoseconds=1)
@@ -893,7 +893,7 @@ default 'raise'
                 hour=None, minute=None, second=None, microsecond=None,
                 nanosecond=None, tzinfo=object, fold=0):
         """
-        implements datetime.replace, handles nanoseconds
+        implements datetime.replace, handles nanoseconds.
 
         Parameters
         ----------