2017-02-17: note that meas include uncertainty

note that meas include uncertainty

diff --git a/examples/ensemble-estimation.w b/examples/ensemble-estimation.w
--- a/examples/ensemble-estimation.w
+++ b/examples/ensemble-estimation.w
@@ -5,7 +5,7 @@ exec guile -L $(dirname $(dirname $(real
 ; !#
 
 ;; Simple Ensemble Square Root Filter to estimate function parameters
-;; based on measurements.
+;; based on measurements with uncertainty.
 
 ;; Provide first guess parameters x^b and measurements y⁰ to get
 ;; optimized parameters x^a.