Remove shell prompt $ character fron convert command.

Author: gedeschaines

README.md

@@ -196,7 +196,7 @@ The following subsections present comparative analysis results illustrating an i
 
 Note, the animated GIFs presented herein were created utilizing the open source Imagemagick's convert tool to assemble a sequence of PNG image files generated by the tutorial2*.py programs discussed below when the SAVE_ANIM flag is set to True. Upon completion of a tutorial2*.py program, change to the ./anim folder and execute the following shell command:
 
-    $ convert -delay F_TIME -loop 0 tutorial2[x|bob|bobs|rods|arm]_0???.png -scale 640x480 tutorial2[x|bob|bobs|rods|arm]_anim.gif
+    convert -delay F_TIME -loop 0 tutorial2[x|bob|bobs|rods|arm]_0???.png -scale 640x480 tutorial2[x|bob|bobs|rods|arm]_anim.gif
 
 where F_TIME denotes the delay time in hundreths of seconds between frames calculated from 1/FPS, with FPS specified in a tutorial2*.py program executed, and tutorial2[x|bob|bobs|rods|arm] represents a set of tutorial2* suffixes to select a value corresponding with a tutorial2*.py program executed to generate the sequence of PNG image files in the ./anim folder to be assembled into an animated GIF tutorial2*_anim.gif file.