update of readme with badge and deployment information (#3)

* adding build badge to readme

* update readme
adding section on how to pull and run with Docker

Author: tobiasehlert

README.md

@@ -1,5 +1,6 @@
 # TibiaData API in Golang
 
+[![GitHub CI](https://github.com/TibiaData/tibiadata-api-go/workflows/build/badge.svg?branch=main)](https://github.com/TibiaData/tibiadata-api-go/actions?query=workflow%3Abuild)
 [![GitHub go.mod version](https://img.shields.io/github/go-mod/go-version/tibiadata/tibiadata-api-go)](https://github.com/tibiadata/tibiadata-api-go/blob/main/go.mod)
 [![Docker version](https://img.shields.io/docker/v/tibiadata/tibiadata-api-go/latest)](https://hub.docker.com/r/tibiadata/tibiadata-api-go)
 [![Docker size](https://img.shields.io/docker/image-size/tibiadata/tibiadata-api-go/latest)](https://hub.docker.com/r/tibiadata/tibiadata-api-go)
@@ -12,6 +13,7 @@ Current status of v3 is in beta and information like documentation can be found
 ### Table of Contents
 
 - [How to use](#how-to-use)
+  - [Docker](#docker)
   - [Docker-compose](#docker-compose)
   - [Local development](#local-development)
   - [Environment variables](#environment-variables)
@@ -26,6 +28,20 @@ You can either use it in a Docker container or go download the code and deploy i
 
 Keep in mind that there are restrictions on tibia.com that might impact the usage of the application being hosted yourself.
 
+### Docker
+
+Our images are available on both [GitHub Container Registry](https://github.com/TibiaData/tibiadata-api-go/pkgs/container/tibiadata-api-go) and [Docker Hub](https://hub.docker.com/r/tibiadata/tibiadata-api-go).
+
+This is how to pull and run the _latest_ release of TibiaData from [GHCR](https://github.com/TibiaData/tibiadata-api-go/pkgs/container/tibiadata-api-go):
+
+```console
+docker pull ghcr.io/tibiadata/tibiadata-api-go:latest
+docker run -p 127.0.0.1:80:8080/tcp --rm -it ghcr.io/tibiadata/tibiadata-api-go:latest
+```
+You can also use [Docker Hub](https://hub.docker.com/r/tibiadata/tibiadata-api-go) to pull your images from.
+
+If you want to run the latest code you can switch from _latest_ to _main_.
+
 ### Docker-compose
 
 _Information will be added at a later stage._