Fix a typo and touch up blank lines
diff --git a/Doc/library/collections.rst b/Doc/library/collections.rst
index 4975f74..bf1fe2c 100644
--- a/Doc/library/collections.rst
+++ b/Doc/library/collections.rst
@@ -1,4 +1,3 @@
-
:mod:`collections` --- Container datatypes
==========================================
@@ -886,7 +885,7 @@
del self[key]
OrderedDict.__setitem__(self, key, value)
-An ordered dictionary can combined with the :class:`Counter` class
+An ordered dictionary can be combined with the :class:`Counter` class
so that the counter remembers the order elements are first encountered::
class OrderedCounter(Counter, OrderedDict):
@@ -985,6 +984,7 @@
subclass) or an arbitrary sequence which can be converted into a string using
the built-in :func:`str` function.
+
.. _collections-abstract-base-classes:
ABCs - abstract base classes