Merge pull request #117 from doktordirk/webpack-readme

doc(Readme): update webpack install guide

README.md

@@ -25,7 +25,23 @@ We've simplified installation and usage! This plugin should now be installed usi
 
 ## Installation
 
-Run `jspm i aurelia-authentication`, or (for webpack) `npm i aurelia-authentication`, from your project root.
+### Jspm/SytemJs
+
+Run `jspm i aurelia-authentication` from your project root.
+
+### Webpack
+
+Run `npm i aurelia-authentication` from your project root.
+
+Aurelia-authentication has submodules (currently only the authFilter). So you need to add it to the AureliaWebpackPlugin includeSubModules list.
+
+```js
+AureliaWebpackPlugin({
+    includeSubModules: [
+      { moduleId: 'aurelia-authentication' }
+    ]
+  }),
+```
 
 ## Documentation