project fixes, methods figure

projects/project_stimulus_reconstruction/stimulus_reconstruction.tex

@@ -45,8 +45,10 @@ reconstruct the stimulus a neuron has been stimulated with.
   \question In the accompanying files you find the spike responses of
   P-units and pyramidal neurons of the weakly electric fish
   \textit{Apteronotus leptorhynchus}. The respective stimuli are
-  stored in separate files.  Start with the P-unit and, in the end,
-  apply the same functions to the pyramidal data.
+  stored in separate files. The data is sampled with 20\,kHz temporal
+  resolution and spike times are given in seconds. Start with the
+  P-unit and, in the end, apply the same functions to the pyramidal
+  data.
   \begin{parts}
     \part Estimate the STA and plot it.
     \part Implement a function that estimates the reconstruction