diff --git a/README.md b/README.md
index 072136d..e0f40a8 100644
--- a/README.md
+++ b/README.md
@@ -201,6 +201,7 @@
 - [NLP Tutorial with Python](http://www.datasciencecentral.com/profiles/blogs/python-nlp-tools)
 
 ## Sentiment Analysis with Python
+- [A Comprehensive Guide to Sentiment Analysis](https://monkeylearn.com/sentiment-analysis/)
 - [Twitter-Sentiment-Analysis](https://github.com/ujjwalkarn/Twitter-Sentiment-Analysis)
 - [Basic Sentiment Analysis with Python](http://fjavieralba.com/basic-sentiment-analysis-with-python.html)
 - [What is the best way to do Sentiment Analysis with Python?](https://www.quora.com/What-is-the-best-way-to-do-Sentiment-Analysis-with-Python-1)
diff --git a/Twitter-Data-Analysis/extract_twitter_data.py b/Twitter-Data-Analysis/extract_twitter_data.py
index b2558dd..178df35 100644
--- a/Twitter-Data-Analysis/extract_twitter_data.py
+++ b/Twitter-Data-Analysis/extract_twitter_data.py
@@ -28,7 +28,7 @@ class MyListener(StreamListener):
  
     def on_data(self, data):
         try:
-            with open('C:\\Users\\ujjwal.karn\\Desktop\\Tweets\\python.json', 'a') as f:  #change location here
+            with open('location/file_name.txt', 'a') as f:  #change location here
                 f.write(data)
                 return True
         except BaseException as e:
diff --git a/basic_commands.py b/basic_commands.py
index b15d929..8c401fc 100644
--- a/basic_commands.py
+++ b/basic_commands.py
@@ -1,5 +1,5 @@
 >>> a = ['a', 'b', 'c', 'd', 'e']
->>> for index, item in enumerate(a): print index, item
+>>> for index, item in enumerate(a): print index, item # enumerate function will generate an index for the item + item it self. 
 ...
 0 a
 1 b
@@ -37,6 +37,7 @@
 str1 = "this is string example....wow!!!";
 str2 = "exam";
 
+# find function will print the position for the first character of the string if it's found!
 print str1.find(str2);
 print str1.find(str2, 10);
 print str1.find(str2, 40);