Update README.md

Author: okkdev

README.md

@@ -1,5 +1,31 @@
-# Cardian
+# 🎴 Cardian
 
 Yu-Gi-Oh! Master Duel Discord Bot
 
 Fetches data from the [Master Duel Meta](https://masterduelmeta.com/) API
+
+### [-> Invite Bot <-](https://discord.com/api/oauth2/authorize?client_id=944183782745997362&permissions=3072&scope=applications.commands%20bot)
+
+## Run your own Cardian Docker container
+
+Create a Discord application and get the bot token. ([More info here](https://discord.com/developers/docs/intro))
+
+Run the container, from [Docker Hub](https://hub.docker.com/repository/docker/okkdev/cardian), with this command:
+
+```sh
+docker run -e CARDIAN_TOKEN=<your-bot-token> okkdev/cardian
+```
+
+## Development
+
+Install dependencies:
+
+```sh
+mix deps.get
+```
+
+Run the app:
+
+```sh
+mix run --no-halt
+```