Update README.md

README.md

@@ -25,12 +25,12 @@ The `build` function will run a single build of the functions in the folder.
 
 ## Webpack Configuration
 
-By default the webpack configuration uses `babel-loader` to load all js files. Any `.babelrc` in the directory `netlify-lambda` is run from will be respected. If no `.babelrc` is found, a few basic settings are used.
+By default the webpack configuration uses `babel-loader` to load all js files. Any `.babelrc` in the directory `netlify-lambda` is run from will be respected. If no `.babelrc` is found, a [few basic settings are used](https://github.com/netlify/netlify-lambda/blob/master/lib/build.js#L11-L15a).
 
 If you need to use additional webpack modules or loaders, you can specify an additional webpack config with the `-c` option when running either `serve` or `build`.
 
 The additional webpack config will be merged into the default config via [webpack-merge's](https://www.npmjs.com/package/webpack-merge) `merge.smart` method.
 
 ## License
 
-[MIT](LICENSE)
+[MIT](LICENSE)