fix package health status badge markdown url

Author: steffensc

README.md

@@ -1,9 +1,7 @@
 # pyvicon-datastream-module
 [![PyPI Downloads](https://img.shields.io/pypi/dm/pyvicon-datastream.svg?label=PyPI%20downloads)](
 https://pypi.org/project/pyvicon-datastream/)
-
-[![pyvicon-datastream](/advisor/python/pyvicon-datastream/badge.svg)](/advisor/python/pyvicon-datastream)
-
+[![pyvicon-datastream](https://snyk.io/advisor/python/pyvicon-datastream/badge.svg)](/advisor/python/pyvicon-datastream)
 
 This module provides a **platform independent** python 3 wrapper implementation over the Vicon Datastream SDK.