Update README.md

Author: ashubly25

README.md

@@ -16,7 +16,7 @@
 
 [Learning Machine Learning? Six articles you don’t want to miss](http://www.ibmbigdatahub.com/blog/learning-machine-learning-six-articles-you-don-t-want-miss)
 
-[Getting started with machine learning][Documented by GITHUB](https://github.com/collections/machine-learning)
+[Getting started with machine learning documented by github](https://github.com/collections/machine-learning)
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