docs: add a Getting Started section to the README (#1007)

Author: taylonr

README.md

@@ -1,21 +1,52 @@
-# Angular Flex-Layout  
+# Angular Flex-Layout
 
 [![npm version](https://badge.fury.io/js/%40angular%2Fflex-layout.svg)](https://www.npmjs.com/package/%40angular%2Fflex-layout)
 [![Build status](https://circleci.com/gh/angular/flex-layout.svg?style=svg)](https://circleci.com/gh/angular/flex-layout)
 [![Gitter](https://badges.gitter.im/angular/flex-layout.svg)](https://gitter.im/angular/flex-layout)
 
-Angular Flex Layout provides a sophisticated layout API using Flexbox CSS + mediaQuery. 
-This module provides Angular developers with component layout features using a 
-custom Layout API, mediaQuery observables, and injected DOM flexbox-2016 CSS stylings.  
+Angular Flex Layout provides a sophisticated layout API using Flexbox CSS + mediaQuery.
+This module provides Angular developers with component layout features using a
+custom Layout API, mediaQuery observables, and injected DOM flexbox-2016 CSS stylings.
 
-The Flex Layout engine intelligently automates the process of applying appropriate 
-Flexbox CSS to browser view hierarchies. This automation also addresses many of the 
-complexities and workarounds encountered with the traditional, manual, CSS-only application of box CSS. 
+The Flex Layout engine intelligently automates the process of applying appropriate
+Flexbox CSS to browser view hierarchies. This automation also addresses many of the
+complexities and workarounds encountered with the traditional, manual, CSS-only application of box CSS.
 
-The **real** power of Flex Layout, however, is its **responsive** engine. The 
-[Responsive API](https://github.com/angular/flex-layout/wiki/Responsive-API) enables developers to easily specify 
+The **real** power of Flex Layout, however, is its **responsive** engine. The
+[Responsive API](https://github.com/angular/flex-layout/wiki/Responsive-API) enables developers to easily specify
 different layouts, sizing, visibilities for different viewport sizes and display devices.
 
+---
+### Getting Started
+
+Start by installing the Angular Layout library from `npm`
+
+`npm i -s @angular/flex-layout @angular/cdk`
+
+Next, you'll need to import the Layout module in your app's module.
+
+**app.module.ts**
+
+```ts
+
+import { FlexLayoutModule } from '@angular/flex-layout';
+...
+
+@NgModule({
+    ...
+    imports: [ FlexLayoutModule ],
+    ...
+});
+```
+
+After that is configured, you can use the Angular Layout attributes in your HTML tags for flex layout:
+```html
+<div fxLayout="row" fxLayoutAlign="space-between">
+</div>
+```
+
+Check out [all of the available options](https://github.com/angular/flex-layout/wiki/Declarative-API-Overview) for using Angular Layout in your application.
+
 ---
 
 ### Quick Links
@@ -32,7 +63,7 @@ Developers
 *  [Builds + Fast Start](https://github.com/angular/flex-layout/wiki/Fast-Starts)
 *  [Integration with Angular CLI](https://github.com/angular/flex-layout/wiki/Using-Angular-CLI)
 
-Demos 
+Demos
 
 *  [Explore Online](https://tburleson-layouts-demos.firebaseapp.com/)
 *  [Source Code](https://github.com/angular/flex-layout/blob/master/src/apps/demo-app/src/app/app.module.ts)