Update README.md

Author: ashfarhangi

README.md

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 Data Structures and Algorithms
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-The summary of **Data Structures and Algorithms** plus **Interview steps** on Udacity nano degree "Data Structures and Algorithms".
+The summary of **Data Structures and Algorithms** plus **Interview steps** from Udacity's nano degree "Data Structures and Algorithms".
 
 I’ve included the code for each concept in Python in the code folder. I would
 suggest to implement short codes for your projects or coding interviews.