Update README.md

wasabeef · wasabeef · commit 3e0738de0a6b · 2016-01-31T02:57:09.000+09:00
diff --git a/README.md b/README.md
@@ -97,6 +97,11 @@ android {
 `SwirlFilterTransformation`, `BrightnessFilterTransformation`, `KuwaharaFilterTransformation`
 `VignetteFilterTransformation`
 
+### Proguard
+```
+-dontwarn jp.co.cyberagent.android.gpuimage.**
+```
+
 Applications using Glide Transformations
 ---
 
