diff --git a/README.md b/README.md
index 86aefe8..3745ad3 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,13 @@
-# utf8-typed
+utf8-typed
+==========
+
 Base64, TypedArrays, and UTF-8 / Unicode conversions in Browser (and Node) JavaScript
+
+This is based wholly on the work by good folks at the MDN.
+
+See https://developer.mozilla.org/en-US/docs/Web/API/WindowBase64/Base64_encoding_and_decoding
+
+License
+=======
+
+Mozilla has licensed this code in the Public Domain, which means that I am at liberty to re-license my copy under the Apache 2, which is something that, general speaking, your legal department will feel more comfortable with.