lower-case webpack typo

Author: evenstensberg

content/loaders/index.md

@@ -54,7 +54,7 @@ This uses the loader “jade” for “.jade” files and the loaders “style
 ---
  - Loaders can be chained. They are applied in a pipeline to the resource. A chain
  of loaders are compiled chronologically. The first loader in a chain of loaders 
- returns an value to the next and at the end loader, Webpack expects JavaScript
+ returns an value to the next and at the end loader, webpack expects JavaScript
  to be returned.
  - Loaders can be synchronous or asynchronous.
  - Loaders run in Node.js and can do everything that’s possible there.