Add a docker-compose file

docker-compose.yml

@@ -0,0 +1,11 @@
+---
+version: "3.9"
+
+services:
+  bot:
+    image: quay.io/eriol/telegram-group2mastodon:latest
+    environment:
+      - MASTODON_ACCESS_TOKEN=${MASTODON_ACCESS_TOKEN}
+      - MASTODON_SERVER_ADDRESS=${MASTODON_SERVER_ADDRESS}
+      - TELEGRAM_BOT_TOKEN=${TELEGRAM_BOT_TOKEN}
+      - TELEGRAM_CHAT_ID=${TELEGRAM_CHAT_ID}