improving readme description

Author: DanielPuentee

README.md

@@ -5,7 +5,7 @@
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 # Outliersdetection: powerful Python outlier detection toolkit
-[![PyPI Latest Release](https://img.shields.io/pypi/v/pandas.svg)](https://pypi.org/project/pandas/
+[![PyPI Downloads](https://img.shields.io/pypi/dm/numpy.svg?label=PyPI%20downloads)](https://pypi.org/project/numpy/)
 
 ## Main Features