Use buildpack for Kong 1.1.0

Author: mars

README.md

@@ -1,6 +1,6 @@
 Kong as a Heroku app
 ====================
-Deploy [Kong 1.0](https://konghq.com/blog/kong-1-0-ga/) clusters to Heroku Common Runtime and Private Spaces using the [Kong buildpack](https://github.com/heroku/heroku-buildpack-kong/).
+Deploy [Kong 1.1.0rc1](https://discuss.konghq.com/t/kong-1-1-0rc1-available-for-testing/2873) clusters to Heroku Common Runtime and Private Spaces using the [Kong buildpack](https://github.com/heroku/heroku-buildpack-kong/).
 
 ⏫ **Upgrading from an earlier version?** See [Upgrade Guide](#user-content-upgrade-guide).
 

app.json

@@ -14,7 +14,7 @@
   "success_url": "https://github.com/heroku/heroku-kong/blob/master/README.md#user-content-usage",
   "stack": "heroku-18",
   "buildpacks": [{
-    "url": "https://github.com/heroku/heroku-buildpack-kong.git"
+    "url": "https://github.com/heroku/heroku-buildpack-kong.git#kong-1.1.0"
   }],
   "addons": [
     "heroku-postgresql"