diff --git a/README.md b/README.md
index dd52c67..1773a41 100644
--- a/README.md
+++ b/README.md
@@ -23,7 +23,7 @@ Release note (v4): simplified func `Icon`; more than 2x reduction of icon memory
 
 - `Similar90270` is a superset of `Similar` by additional comparison to images rotated ±90°. Such rotations are relatively common, even by accident when taking pictures on mobile phones.
 
-- `EucMetric` can be used instead of `Similar` when you need different precision or want to sort by similarity.
+- `EucMetric` can be used instead of `Similar` when you need different precision or want to sort by similarity. [Example](https://github.com/egor-romanov/png2gif/blob/main/main.go#L450) (not mine).
 
 - `PropMetric` allows customization of image proportion threshold.