diff --git a/img/avatars/README b/img/avatars/README
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--- a/img/avatars/README
+++ b/img/avatars/README
@@ -1,4 +1,4 @@
-All images in this directory are under a CC0 license.
+All images in this directory are under a CC0 license, originally from pixabay.com
 
 http://creativecommons.org/publicdomain/zero/1.0
 
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