chore(docs): add documentation showing how to include bootstrap

docs/documentation/stories/include-bootstrap.md

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+# Include [Bootstrap](http://getbootstrap.com/)
+
+[Bootstrap](http://getbootstrap.com/) is a popular CSS framework which can be used within an Angular project.
+This guide will walk you through adding bootstrap to your Angular CLI project and configuring it to use bootstrap.
+
+Create a new project and navigate into the project
+```
+ng new my-app
+cd my-app
+```
+
+With the new project created and ready you will next need to install bootstrap to your project as a dependency.
+Using the `--save` option the dependency will be saved in package.json
+```
+// version 3.x
+npm install bootstrap --save
+
+// version 4.x
+npm install bootstrap@next --save
+```
+
+Now that the project is set up it must be configured to include the bootstrap CSS.
+
+Open the file `angular-cli.json` from the root of your project.
+Under the property `apps` the first item in that array is the default application.
+There is a property `styles` which allows external global styles to be applied to your application.
+Specify the path to `bootstrap.min.css`
+```
+// version 3.x and 4.x
+"../node_modules/bootstrap/dist/css/bootstrap.min.css"
+```
+
+With the application configured, run `ng serve` to run your application in develop mode.
+In your browser navigate to the application `localhost:4200`.
+Make a change to your application to ensure that the CSS library has been included.
+A quick test is to add the following markup to `app.component.html`
+```
+<button class="btn btn-primary">Test Button</button>
+```
+After saving this file, return to the browser to see the bootstrap styled button.
+
+
+**Note:** When you make changes to `angular-cli.json` you will need to re-start `ng serve` to pick up configuration changes.