docs: rewrite project README

Author: devcarron

README.md

@@ -1,20 +1,31 @@
-[![Build Status](https://travis-ci.com/d-Rickyy-b/Python-BlackJackBot.svg?branch=master)](https://travis-ci.com/d-Rickyy-b/Python-BlackJackBot)
+
+[![Build Status](https://github.com/d-Rickyy-b/Python-BlackJackBot/actions/workflows/python-lint-test.yml/badge.svg)](https://github.com/d-Rickyy-b/Python-BlackJackBot/actions/workflows/python-lint-test.yml)
 [![Coverage Status](https://coveralls.io/repos/github/d-Rickyy-b/Python-BlackJackBot/badge.svg?branch=rebuild)](https://coveralls.io/github/d-Rickyy-b/Python-BlackJackBot?branch=rebuild)
 [![Codacy Badge](https://app.codacy.com/project/badge/Grade/12996d68fc0f436085221ac6b1f525f9)](https://www.codacy.com/manual/d-Rickyy-b/Python-BlackJackBot?utm_source=github.com&utm_medium=referral&utm_content=d-Rickyy-b/Python-BlackJackBot&utm_campaign=Badge_Grade)
 
 # Python-BlackJackBot
 
-This is the code for my Telegram Bot with which you can play the game Black Jack. You can find it here: https://telegram.me/BlackJackBot
-
-The main file, which needs to be executed is 'main.py'. Please create a copy of the config.sample.py, name it config.py and enter the config data (e.g. bot
- token).
+This is the code for my Telegram Bot with which you can play the game Black Jack. 
+You can find the hosted version of it here: https://telegram.me/BlackJackBot
 
 ## Setup
+This project is really easy to set up. No matter which of the following ways you'll use, you'll always need a config file.
+To create one, simply copy the existing `config.sample.py` file and name it `config.py`. Enter your bot token and make your changes accordingly.
 
-The bot uses the [python-telegram-bot](https://python-telegram-bot.org/) framework to make Telegram API calls. You can install it like that:
+Then you're left with several ways to run this bot.
+
+### 1.) Cloning the repo
+If you want to run this code from source, you can just `git clone` this repo.
+It's recommended to create a new virtual environment (`python3 -m venv /path/to/venv`).
+This bot uses the [python-telegram-bot](https://python-telegram-bot.org/) framework to make Telegram API calls.
+You can install it (and potential other requlrements) like that:
 
 ``pip install -r requirements.txt``
 
-## Database
+Afterwards just run `python3 bot.py` and if done right, you'll be left with a working bot.
+
+### 2.) Docker
+This project also contains a `Dockerfile` as well as a pre-built [Docker image](https://hub.docker.com/repository/docker/0rickyy0/blackjackbot) hosted on the official Docker Hub.
 
-The bot uses a SQLite database. The database file is in the "database" directory. It is called 'users.db'. The database gets auto-generated, if it doesn't exist. Make sure the program has write access to the database directory.
+You will also find the `docker-compose.yml` file with which you can easily set up your own instance of the bot.
+Just specify the path to your config etc. in said docker-compose file.