Punctuation typos.
diff --git a/Doc/library/collections.rst b/Doc/library/collections.rst
index 488bf35..8b80b64 100644
--- a/Doc/library/collections.rst
+++ b/Doc/library/collections.rst
@@ -975,7 +975,7 @@
:class:`Sized` ``__len__``
:class:`Callable` ``__call__``
-:class:`Sequence` :class:`Sized`, ``__getitem__`` ``__contains__``. ``__iter__``, ``__reversed__``,
+:class:`Sequence` :class:`Sized`, ``__getitem__`` ``__contains__``, ``__iter__``, ``__reversed__``,
:class:`Iterable`, ``index``, and ``count``
:class:`Container`
@@ -984,7 +984,7 @@
and ``insert`` ``remove``, and ``__iadd__``
:class:`Set` :class:`Sized`, ``__le__``, ``__lt__``, ``__eq__``, ``__ne__``,
- :class:`Iterable`, ``__gt__``, ``__ge__``, ``__and__``, ``__or__``
+ :class:`Iterable`, ``__gt__``, ``__ge__``, ``__and__``, ``__or__``,
:class:`Container` ``__sub__``, ``__xor__``, and ``isdisjoint``
:class:`MutableSet` :class:`Set` ``add`` and Inherited Set methods and