add Aurelia free book (#2290)

* add Aurelia free book

* add new line between head and last line

javascript-frameworks-resources.md

@@ -124,3 +124,8 @@
 * [Building a Live-Validating Signup Form in Elm](http://tech.noredink.com/post/129641182738/building-a-live-validated-signup-form-in-elm)
 * [Elm Tutorial](http://www.elm-tutorial.org)
 * [The Elm Architecture](https://github.com/evancz/elm-architecture-tutorial)
+
+
+## Aurelia
+
+* [Beginning Aurelia](https://leanpub.com/beginning-of-aurelia)