starter docs

readme.md

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+## labeling telegram bot
+
+This application is build to render and print labels sent to it via telegram, as well
+as provide info about printer status and other useful information.
+
+### usage example
+You need to things:
+1. A telegram bot token, you can write to [@BotFather](https://t.me/BotFather) to get one
+2. A compatible printer
+3. docker installed on your system
+
+```yaml
+version: "3.8"
+services:
+  bot:
+    build:
+      context: .
+      dockerfile: Dockerfile
+    environment:
+      - PRINTER_IP=<printer_ip>
+      - TELEGRAM_TOKEN=<telegram_bot_token>
+    command:
+      - python
+      - labeler/adapter/telegram_bot.py
+
+```
+
+### Supported printers
+- Brother PT-E550W