Render `DifferentialEquation` Documentation (#3850)

* ls

* Changes to ode.rst to make docs appear.

* Should be working now

docs/source/api.rst

@@ -21,6 +21,7 @@ API Reference
    api/model_graph
    api/variables
    api/shape_utils
+   api/ode
 
 
 Indices and tables

docs/source/api/ode.rst

+====
+ODE
+====
+
+This submodule contains tools used to perform inference on ordinary differential equations.
+
+.. currentmodule:: pymc3.ode
+
+.. autosummary::
+
+.. automodule:: pymc3.ode
+   :members: DifferentialEquation
\ No newline at end of file

pymc3/ode/ode.py

@@ -45,6 +45,9 @@ class DifferentialEquation(theano.Op):
         Number of parameters in the differential equation.
     t0: float
         Time corresponding to the initial condition
+
+    Examples
+    --------
     
     .. code-block:: python