Add explicit references for cross-doc file links

docs/fields.rst

@@ -1,6 +1,8 @@
 Fields
 ======
 
+.. _StatusField:
+
 StatusField
 -----------
 
@@ -20,7 +22,7 @@ default value to the first item in the ``STATUS`` choices:
         # ...
         status = StatusField()
 
-(The ``STATUS`` class attribute does not have to be a `Choices`_
+(The ``STATUS`` class attribute does not have to be a :ref:`Choices`
 instance, it can be an ordinary list of two-tuples).
 
 ``StatusField`` does not set ``db_index=True`` automatically; if you
@@ -29,6 +31,8 @@ enough selectivity to make an index worthwhile) you may want to add this
 yourself.
 
 
+.. _MonitorField:
+
 MonitorField
 ------------
 

docs/managers.rst

@@ -80,6 +80,8 @@ This abstract base class just provides self-updating ``created`` and
 ``modified`` fields on any model that inherits from it.
 
 
+.. _QueryManager:
+
 QueryManager
 ------------
 

docs/models.rst

@@ -13,10 +13,10 @@ within their time range.
 StatusModel
 -----------
 
-Pulls together `StatusField`_, `MonitorField`_ and `QueryManager`_
+Pulls together :ref:`StatusField`, :ref:`MonitorField` and :ref:`QueryManager`
 into an abstract base class for any model with a "status."
 
-Just provide a ``STATUS`` class-attribute (a `Choices`_ object or a
+Just provide a ``STATUS`` class-attribute (a :ref:`Choices` object or a
 list of two-tuples), and your model will have a ``status`` field with
 those choices, a ``status_changed`` field containing the date-time the
 ``status`` was last changed, and a manager for each status that

docs/utilities.rst

@@ -2,6 +2,8 @@
 Miscellaneous Utilities
 =======================
 
+.. _Choices:
+
 Choices
 =======