Update README.md

simonschoelly · web-flow · commit 3d4509bd1fc1 · 2021-04-08T23:18:28.000+02:00
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 ![](https://img.shields.io/badge/lifecycle-experimental-orange.svg)
 
 A Julia package for calculating [graph kernels](https://en.wikipedia.org/wiki/Graph_kernel) -
-kernel function where the inputs are graphs.
+kernel functions where the inputs are graphs.
 
 ### Example
 
