Add ruby and nodejs buildpacks for heroku
diff --git a/.buildpacks b/.buildpacks
new file mode 100644
index 0000000..f38459f
--- /dev/null
+++ b/.buildpacks
@@ -0,0 +1,2 @@
+https://github.com/heroku/heroku-buildpack-nodejs
+https://github.com/heroku/heroku-buildpack-ruby