documented graph in rst, added header to doc/graph.txt

doc/graph.txt

@@ -86,3 +86,21 @@ If we had wanted a more brute-force approach to graph construction, we could hav
 
 Note how the call to `Apply` modifies the `owner` and `index` fields of the `Result` s passed as outputs to point to itself and the rank they occupy in the output list. This whole machinery builds a DAG (Directed Acyclic Graph) representing the computation, a graph that theano can compile and optimize.
 
+
+.. header:: |THEANO| - README_ - Download_ - Documentation_ - Wiki_ - `Task List`_
+
+.. |THEANO| image:: http://lgcm.iro.umontreal.ca/theano/chrome/site/theano_logo.png
+   :target: http://pylearn.org/auto_theano
+   :alt: THEANO
+   :align: top
+   :class: borderless
+   :width: 60
+   :height: 18
+
+.. _README: ../README.html
+.. _Download: ../README.html#downloading-theano
+.. _Documentation: index.html
+.. _Wiki: http://pylearn.org/theano
+.. _task list: http://lgcm.iro.umontreal.ca/theano/query?status=accepted&status=assigned&status=new&status=reopened&group=milestone&max=200&col=id&col=summary&col=status&col=owner&col=type&col=priority&col=component&col=time&report=9&order=priority
+
+

gof/type.py

@@ -195,7 +195,7 @@ class CLinkerType(object):
 class PureType(object):
     """Interface specification for result type instances.
 
-    A Type instance is mainly reponsible for two things:
+    A :term:`Type` instance is mainly reponsible for two things:
 
     - creating `Result` instances (conventionally, `__call__` does this), and