Adds eraser map links (#357)

* Adds eraser map links

* Add files via upload

* Adds screenshots

* Embed screenshots in README

README.md

@@ -3,6 +3,8 @@
 
 The Mapzen Android SDK is a thin wrapper that packages up everything you need to use Mapzen services in your Android applications. It also simplifies setup, installation, API key management and generally makes your life better.
 
+![screenshot](assets/android-sdk.png)
+
 ## Usage
 Everything you need to get going using the Mapzen SDK
 
@@ -40,6 +42,8 @@ For a working example please refer to the SDK [sample app](https://github.com/ma
 
 The Mapzen Places API is a drop in replacement for the Google Places API.
 
+![screenshot](assets/android-places.png)
+
 ## Usage
 Everything you need to get going using the Mapzen Places API
 
@@ -56,4 +60,12 @@ Everything you need to get going using the Mapzen Places API
 - [PlaceDetectionApi](https://github.com/mapzen/android/blob/master/docs/place-detection-api.md)
 
 ## Sample
-For a working example please refer to the Places [sample app](https://github.com/mapzen/android/tree/master/samples/mapzen-places-api-sample).
+For a working example please refer to the Places [sample app](https://github.com/mapzen/android/tree/master/samples/mapzen-places-api-sample).
+
+# Eraser Map
+
+An [open source](https://github.com/mapzen/eraser-map) privacy-focused reference application built entirely using Mapzen services. With Eraser Map you can see a canonical implementation of mapping, search, and turn-by-turn navigation.
+
+![screenshot](assets/eraser-map.png)
+
+Beta builds of Eraser Map (plus the SDK demo apps and other science projects) are available on the [Mapzen Android download page](http://android.mapzen.com/).