Revert "remove heroku files"

kennethreitz · kennethreitz · commit c1633c82301e · 2018-07-04T12:02:43.000-04:00
This reverts commit bfa5e32.
diff --git a/Procfile b/Procfile
@@ -0,0 +1 @@
+web: gunicorn httpbin:app -k gevent
diff --git a/runtime.txt b/runtime.txt
@@ -0,0 +1 @@
+python-3.6.5
