add fuzzing status to README

README.md

@@ -32,3 +32,4 @@ If you want to reach the authors in private, use <[email protected]>.
 [![Github Actions Build Status](https://github.com/nih-at/libzip/workflows/build/badge.svg)](https://github.com/nih-at/libzip/actions?query=workflow%3Abuild)
 [![Appveyor Build status](https://ci.appveyor.com/api/projects/status/f1bqqt9djvf22f5g?svg=true)](https://ci.appveyor.com/project/nih-at/libzip)
 [![Coverity Status](https://scan.coverity.com/projects/127/badge.svg)](https://scan.coverity.com/projects/libzip)
+[![Fuzzing Status](https://oss-fuzz-build-logs.storage.googleapis.com/badges/libzip.svg)](https://bugs.chromium.org/p/oss-fuzz/issues/list?sort=-opened&can=1&q=proj:libzip)