fixed doc changes following James' github comments

theano/compile/function.py

@@ -142,15 +142,11 @@ def function(inputs, outputs=None, mode=None, updates=None, givens=None,
                The linker uses a python loop to execute the code associated
                with all the Apply nodes in the graph in the correct order.
                the cvm is a linker that replaces this python loop with a c
-                loop to avoid continuously changing between python and c.
-                (It's
-                currently
-                a matter of disagreement as to whether there is a cost of
-                changing
-                between
-                python and C, or whether the cvm is faster only because C code is
-                faster
-                than python code)
+               loop to avoid continuously changing between python and c.
+               (It's currently a matter of disagreement as to whether there
+               is a cost of changing between
+               python and C, or whether the cvm is faster only because C code
+               is faster than python code)
                the vm is a linker that was developed to prototype the cvm. it
         was easier to develop the vm in python then translate it to c instead
         of just writing it in c from scratch

theano/gof/vm.py

@@ -33,17 +33,11 @@ class VM(object):
     The Stack should be considered the reference VM/Linker implementation.
     It can correctly evaluate all graphs and is the easiest to read. The CVM
     is a port of Stack, and should have the same behavior, but run faster.
-    Its code is harder to read though.
+    The CVM's code is harder to read though.
 
     The other python VMs are maybe not necessary anymore, and don't take
     advantage of lazy computation, though they still produce the correct
-    output for lazy nodes   It can correctly evaluate all graphs and is the easiest to read. The CVM
-    is a port of Stack, and should have the same behavior, but run faster.
-        Its code is harder to read though.
-
-        The other python VMs are maybe not necessary anymore, and don't take
-        advantage of lazy computation, though they still produce the correct
-        output for lazy nodes.
+    output for lazy nodes.
 
     Attributes: