Merge pull request nodejs#66 from jacobq/patch-1

Fix broken link to ES modules EP

Author: Trott

000-index.md

@@ -1,7 +1,7 @@
 # Node.js Enhancement Proposals
 
 * [Public C++ Streams](001-public-stream-base.md)
-* [ES6 Module Interoperability](002-es6-modules.md)
+* [ES6 Module Interoperability](002-es-modules.md)
 * [WHATWG URL API](003-url.md)
 * [Port core to uv_link_t](004-uv_link_t.md)
 * [ABI Stable Module API](005-ABI-Stable-Module-API.md)