synk badge added

ulf1 · ulf1 · commit 64feab2aaca7 · 2021-04-23T22:48:14.000+02:00
diff --git a/README.md b/README.md
@@ -1,4 +1,6 @@
 [![PyPI version](https://badge.fury.io/py/numpy-fracdiff.svg)](https://badge.fury.io/py/numpy-fracdiff)
+[![numpy-fracdiff](https://snyk.io/advisor/python/numpy-fracdiff/badge.svg)](https://snyk.io/advisor/python/numpy-fracdiff)
+
 
 # numpy-fracdiff
 Fractional Difference for Time Series
