#172 - release note added

config/heroku.php

@@ -0,0 +1,11 @@
+<?php
+
+declare(strict_types=1);
+
+return [
+    "release_version" => env("HEROKU_RELEASE_VERSION"),
+    "slug_description" => env("HEROKU_SLUG_DESCRIPTION"),
+    "release_created_at" => env("HEROKU_RELEASE_CREATED_AT"),
+    "slug_commit" => env("HEROKU_SLUG_COMMIT"),
+    "github_url" => env("GITHUB_REPO_URL")
+];