Refactor license section

wooorm · wooorm · commit 1a710fa9880c · 2019-05-29T14:01:45.000+02:00
diff --git a/readme.md b/readme.md
@@ -569,9 +569,7 @@ for contributing to unist and related projects!
 
 ## License
 
-Copyright © [Titus Wormer][author].
-This work is licensed under a
-[Creative Commons Attribution 4.0 International License][license].
+[CC-BY-4.0][license] © [Titus Wormer][author]
 
 <!-- Definitions -->
 
