Add a reference to mod_python's use of multiple interpreters and fix two typos.

pep-3119.txt

@@ -159,7 +159,7 @@ Transcendental.  PEP 3141 originally proposed to patch float.__bases__
 for that purpose, but there are some good reasons to keep the built-in
 types immutable (for one, they are shared between all Python
 interpreters running in the same address space, as is used by
-mod_python).
+mod_python [16]_).
 
 Another example would be someone who wants to define a generic
 function (PEP 3124) for any sequences that has an ``append()`` method.
@@ -310,7 +310,7 @@ relationships::
 The ``abc`` module also defines a new decorator, ``@abstractmethod``,
 to be used to declare abstract methods.  A class containing at least
 one method declared with this decorator that hasn't been overridden
-yet cannot be instantiated.  Such a methods may be called from the
+yet cannot be instantiated.  Such methods may be called from the
 overriding method in the subclass (using ``super`` or direct
 invocation).  For example::
 
@@ -406,7 +406,7 @@ partial ordering).  But this cannot be the case: If both ``list`` and
 fact (in Python 3000!)  such "mixed-mode comparisons" operations are
 explicitly forbidden and raise ``TypeError``.  See PEP 3100 and [14]_
 for more information.  (This is a special case of a more general issue
-with operations that take another argument of the same type: 
+with operations that take another argument of the same type).
 
 
 One Trick Ponies
@@ -863,6 +863,9 @@ References
 .. [15] Function ``frozenset_hash()`` in Object/setobject.c
    (http://svn.python.org/view/python/trunk/Objects/setobject.c)
 
+.. [16] Multiple interpreters in mod_python
+   (http://www.modpython.org/live/current/doc-html/pyapi-interps.html)
+
 
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