Update code comment in PyHelper

src/PyHelper.hpp

@@ -1,6 +1,8 @@
 #ifndef PYHELPER_HPP
 #define PYHELPER_HPP
 #pragma once
+// Code taken and adapted from 
+// https ://www.codeproject.com/Articles/820116/Embedding-Python-program-in-a-C-Cplusplus-code
 
 #include <Python.h>
 #include <boost/python/numpy.hpp>