Add Deploy to Heroku

README.md

@@ -10,6 +10,8 @@ heroku config:add NEW_BASE_URL=http://example.com
 
 ## Deployment
 
+[![Deploy to Heroku](https://www.herokucdn.com/deploy/button.png)](https://heroku.com/deploy)
+
 If the old app that you're redirecting from isn't a Node app you'll need to change the [buildpack](https://devcenter.heroku.com/articles/buildpacks):
 
 ```
@@ -22,4 +24,4 @@ You can then replace the app by pushing with `-f`:
 git push heroku master -f
 ```
 
-**NOTE:** If the above doesn't work you may need to delete and re-create your Heroku app before pushing an entirely new Git repository into it.
+**NOTE:** If the above doesn't work you may need to delete and re-create your Heroku app before pushing an entirely new Git repository into it.

app.json

@@ -0,0 +1,10 @@
+{
+  "name": "Heroku Redirect",
+  "repository": "https://github.com/kenmickles/heroku-redirect",
+  "env": {
+    "NEW_BASE_URL": {
+      "description": "Redirect all requests to this URL.",
+      "value": "http://example.com"
+    }
+  }
+}