Add exports exception for loadConfigFile

docs/02-javascript-api.md

@@ -260,7 +260,7 @@ See above for details on `inputOptions` and `outputOptions`, or consult the [big
 In order to aid in generating such a config, rollup exposes the helper it uses to load config files in its command line interface via a separate entry-point. This helper receives a resolved `fileName` and optionally an object containing command line parameters:
 
 ```js
-const loadConfigFile = require('rollup/dist/loadConfigFile');
+const loadConfigFile = require('rollup/loadConfigFile');
 const path = require('path');
 const rollup = require('rollup');
 

package.json

@@ -136,6 +136,8 @@
       },
       "default": "./dist/es/rollup.browser.js"
     },
+    "./loadConfigFile": "./dist/loadConfigFile.js",
+    "./dist/loadConfigFile": "./dist/loadConfigFile.js",
     "./dist/*": "./dist/*"
   }
 }