--- a/js.rst	Wed Mar 14 17:26:25 2018 +0200
+++ b/js.rst	Wed Mar 14 17:31:26 2018 +0200
@@ -96,6 +96,8 @@
 Level of feature support in JS engines
 ======================================
 
+https://kangax.github.io/compat-table/es6/
+  ES6 compatibility table.
 http://node.green/
   Node.js features.
 https://fhinkel.rocks/six-speed/