Demo Site "Getting Starting" links 404

the [demo site](https://bitovi.github.io/ylem/) links [_Getting Started with Webpack_](https://github.com/bitovi/ylem/blob/master/docs/getting-started-webpack.md) and [_Getting Started with StealJS_](https://github.com/bitovi/ylem/blob/master/docs/getting-started-steal.md) docs don't exist.

https://github.com/bitovi/ylem/blob/gh-pages/index.html#L51-L52

Inspect gh-pages/index.html around lines 51-52 and verify the two linked documentation paths. Determine whether the links should point to existing pages or the missing docs should be added, then confirm the demo site's Getting Started links no longer return 404.

Written by the indexing model from the issue text.