Update README.md

Author: HGS-eiturrat

README.md

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 # MNIST Dataset
 
-A collection of handwritten digits used by IDL's classify_digits.pro
+The MNIST database of handwritten digits has a training set of 60,000 examples, and a test set of 10,000 examples. The digits have been size-normalized and centered in a fixed-size image.
 
-Originally available at http://yann.lecun.com/exdb/mnist/
+It is a good dataset for people who want to try learning techniques and pattern recognition methods on real-world data while spending minimal efforts on preprocessing and formatting.
 
-The MNIST database of handwritten digits has a training set of 60,000 examples, and a test set of 10,000 examples. The digits have been size-normalized and centered in a fixed-size image.
+Originally available at http://yann.lecun.com/exdb/mnist/
 
-It is a good database for people who want to try learning techniques and pattern recognition methods on real-world data while spending minimal efforts on preprocessing and formatting.
+Yann LeCun (Courant Institute, NYU) and Corinna Cortes (Google Labs, New York) hold the copyright of MNIST dataset, which is a derivative work from original NIST datasets. MNIST dataset is made available under the terms of the Creative Commons Attribution-Share Alike 3.0 license. The original files are provided here with no modifications.