fix problems in assignments

projects/project_stimulus_reconstruction/stimulus_reconstruction.tex

@@ -51,6 +51,8 @@ reconstruct the stimulus a neuron has been stimulated with.
   data.
   \begin{parts}
     \part Estimate the STA and plot it.
+    \part Implement a function that does the reconstruction of the
+    stimulus using the STA.
     \part Implement a function that estimates the reconstruction 
     error using the mean-square-error and express it relative to the
     variance of the original stimulus.