note about ECMAScript

Change-Id: I875245558477eea3e7d01bfd8e06c31a826ea0a8

Author: samthor

README.md

@@ -25,7 +25,7 @@ Contributions are welcome.
 ### Native Node Usage
 
 The module provides `compile` as a low-level method to compile JavaScript.
-By default, this compiles ES6 to ES5 and includes the default set of EcmaScript externs files.
+By default, this compiles ES6 to ES5 and includes the default set of ECMAScript externs files.
 
 ```js
 const compiler = require('closure-compiler-js').compiler;

compile.js

@@ -49,6 +49,7 @@ module.exports = function(flags) {
   }
 
   // add default externs
+  // TODO(samthor): this should load browser code, merge into a single file
   if (!externs) {
     externs = loadExterns();
   }