Add new file

release.sh

+#!/bin/sh
+
+
+IMAGE_ID=$(docker inspect ${HEROKU_REGISTRY_IMAGE} --format={{.Id}})
+PAYLOAD='{"updates": [{"type": "web", "docker_image": "'"$IMAGE_ID"'"}]}'
+
+curl -n -X PATCH https://api.heroku.com/apps/$HEROKU_APP_NAME/formation \
+  -d "${PAYLOAD}" \
+  -H "Content-Type: application/json" \
+  -H "Accept: application/vnd.heroku+json; version=3.docker-releases" \
+  -H "Authorization: Bearer ${HEROKU_API_KEY}"