Added plot of gun spectra to readme

README.md

@@ -70,6 +70,8 @@ There are two types of files for the 6x1min and 10min records. Both contain ASCI
 
 # Details of the stimulus videos
 
+0. The gun spectra are saved as raw text in `/stimuli/` and show the typical shape: ![Spectra](./stimuli/GunSpectra.jpg)
+
 1. 1x10_256.mpg  This is the 10 minute video. It begins with  751  blank frames (approximately equal energy white) followed by the 10 min live video (starting at frame 752, 90000 frames) followed by 750 blank frames. These frames were played at 150 frames/sec, 3 times acquisition rate. Timing pulses are provided on the audio channel beginning at the first frame of the video. They have a complex pattern, repeating every 5 sec. They were provided to ensure syncing with the data acquisition system that recorded spike trains.
 
 2. 6x1_256.mpg. This is 1 min video. Structure as in 1x10min, except only 9000 frames.