fix comment to docstring

Author: danbarla

python/gtsam/tests/test_KalmanFilter.py

@@ -19,20 +19,20 @@
 class TestKalmanFilter(GtsamTestCase):
 
     def test_KalmanFilter(self):
-
-        # Kalman Filter Definitions:
-        #
-        # F - State Transition Model
-        # B - Control Input Model
-        # u - Control Vector
-        # modelQ - Covariance of the process Noise (input for KalmanFilter object) - sigma as input
-        # Q - Covariance of the process Noise (for reference calculation) - sigma^2 as input
-        # H - Observation Model
-        # z1 - Observation iteration 1
-        # z2 - Observation iteration 2
-        # z3 - observation iteration 3
-        # modelR - Covariance of the observation Noise (input for KalmanFilter object) - sigma as input
-        # R - Covariance of the observation Noise (for reference calculation) - sigma^2 as input
+        """ 
+        Kalman Filter Definitions:
+        F - State Transition Model
+        B - Control Input Model
+        u - Control Vector
+        modelQ - Covariance of the process Noise (input for KalmanFilter object) - sigma as input
+        Q - Covariance of the process Noise (for reference calculation) - sigma^2 as input
+        H - Observation Model
+        z1 - Observation iteration 1
+        z2 - Observation iteration 2
+        z3 - observation iteration 3
+        modelR - Covariance of the observation Noise (input for KalmanFilter object) - sigma as input
+        R - Covariance of the observation Noise (for reference calculation) - sigma^2 as input
+        """
 
         F = np.eye(2)
         B = np.eye(2)