Update README.md

Author: realajaydubey

README.md

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 data_structures_and_algorithms_using_javascript
 ===============================================
 
-This is the example code than accompanies Data Structures and Algorithms with JavaScript by Michael McMillan (9781449364939). 
+There is the example code than accompanies Data Structures and Algorithms with JavaScript by Michael McMillan (9781449364939). 
 
-Click the Download Zip button to the right to download example code.
+ Please click the Download Zip button to the right to download example code.
 
 Visit the catalog page [here](http://shop.oreilly.com/product/0636920029557.do).