Add python-machine-learning link

Author: rrlyman

README.md

@@ -3,7 +3,11 @@
 These are Python programs mostly taken from the book "Python Machine Learning"
 by Sebastian Raschka
 
-They were intended to prove out the data set of character images found in
+see the original programs from the book at:
+
+https://github.com/rasbt/python-machine-learning-book
+
+These programs were intended to prove out the data set of character images found in
 fonts.zip.  
 
 For a detailed explanation of each program, read "Python Machine Learning".
@@ -14,7 +18,7 @@ be used with E13B.
 
 run_batch.sc is a bash script that runs all of the programs in the directory
 
-The programs will make a lot of graphs and a run_batch.txt file in ./plots.
+The script file will place many graphs and a run_batch.txt file in ./plots.
 
 
 Python 3.4