ICU-20855 Add OSS-Fuzz fuzzing badge

See #877
diff --git a/README.md b/README.md
index 1f6a488..1c04ae5 100644
--- a/README.md
+++ b/README.md
@@ -16,6 +16,7 @@
 Azure Pipelines | [![Build Status](https://unicode-icu.visualstudio.com/ICU/_apis/build/status/Azure%20CI?branchName=master)](https://unicode-icu.visualstudio.com/ICU/_build/latest?definitionId=21&branchName=master)
 Azure Pipelines (Exhaustive Tests) | [![Build Status](https://unicode-icu.visualstudio.com/ICU/_apis/build/status/Azure%20CI%20%5BExhaustive%20Tests%5D?branchName=master)](https://unicode-icu.visualstudio.com/ICU/_build/latest?definitionId=24&branchName=master)
 AppVeyor | [![Build status](https://ci.appveyor.com/api/projects/status/6ev1ssb6efahsvs2?svg=true)](https://ci.appveyor.com/project/unicode-org/icu)
+Fuzzing | [![Fuzzing Status](https://oss-fuzz-build-logs.storage.googleapis.com/badges/icu.svg)](https://bugs.chromium.org/p/oss-fuzz/issues/list?sort=-opened&can=1&q=proj:icu)
 
 
 ### Subdirectories and Information