Add heroku button.

Author: Edward Muller

README.md

@@ -1,5 +1,8 @@
+
 # go-getting-started
 
+[![Deploy](https://www.herokucdn.com/deploy/button.png)](https://heroku.com/deploy)
+
 A barebones Go app, which can easily be deployed to Heroku.  
 
 This application supports the [Getting Started with Go on Heroku](https://devcenter.heroku.com/articles/getting-started-with-go) article - check it out.
@@ -31,4 +34,3 @@ $ heroku open
 For more information about using Go on Heroku, see these Dev Center articles:
 
 - [Go on Heroku](https://devcenter.heroku.com/categories/go)
-

app.json

@@ -0,0 +1,15 @@
+{
+  "name": "go-getting-started",
+  "description": "Go Getting Started Example App",
+  "keywords": [
+    "getting-started",
+    "go",
+    "sample",
+    "example"
+  ],
+  "website": "http://github.com/heroku/go-getting-started",
+  "repository": "http://github.com/heroku/go-getting-started",
+  "env": {
+    "BUILDPACK_URL": "https://github.com/heroku/heroku-buildpack-go"
+  }
+}