update nlp urls

Author: lazyprogrammer

nlp_class/article_spinner.py

@@ -1,4 +1,5 @@
 # Very basic article spinner for NLP class, which can be found at:
+# https://deeplearningcourses.com/c/data-science-natural-language-processing-in-python
 # https://www.udemy.com/data-science-natural-language-processing-in-python
 
 # Author: http://lazyprogrammer.me

nlp_class/lsa.py

@@ -1,4 +1,5 @@
 # Latent semantic analysis visualization for NLP class, which can be found at:
+# https://deeplearningcourses.com/c/data-science-natural-language-processing-in-python
 # https://www.udemy.com/data-science-natural-language-processing-in-python
 
 # Author: http://lazyprogrammer.me

nlp_class/nb.py

@@ -1,4 +1,5 @@
 # Naive Bayes spam detection for NLP class, which can be found at:
+# https://deeplearningcourses.com/c/data-science-natural-language-processing-in-python
 # https://www.udemy.com/data-science-natural-language-processing-in-python
 # dataset: https://archive.ics.uci.edu/ml/datasets/Spambase
 

nlp_class/sentiment.py

@@ -1,4 +1,5 @@
 # This code is for my NLP Udemy class, which can be found at:
+# https://deeplearningcourses.com/c/data-science-natural-language-processing-in-python
 # https://www.udemy.com/data-science-natural-language-processing-in-python
 # It is written in such a way that tells a story.
 # i.e. So you can follow a thought process of starting from a