Create updated setup instructions

setup.md

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+# SIKWEB 2.0
+
+## Accessing the source
+
+### Clone this repository and enter it
+
+Set up your SSH key authentication in GitLab Profile Settings. Then clone the repository:
+
+```
+git clone git@sika.sahkoinsinoorikilta.fi:vtmk/web2.0.git
+cd web2.0
+```
+
+Change to the development branch:
+
+```
+git checkout develop
+```
+
+Create your settings.py with default passwords
+
+## Installation with Docker
+
+### Installing Docker
+
+Install docker and docker-compose. On Ubuntu you can install Docker from the repositories but docker-compose must be installed separately.
+
+```BASH
+sudo apt-get install docker
+```
+Navigate to [docker-compose releases](https://github.com/docker/compose/releases) for install information.
+
+### Removing docker images (Optional)
+
+This will remove your old docker images.
+
+```BASH
+sudo docker rm $(sudo docker ps -a -q)
+
+sudo docker rmi -f $(sudo docker images -a -q)
+```
+
+### Setting up the system
+
+This will setup the environment for you and run the migrations.
+
+```BASH
+sudo scripts/autoinstall.sh
+```
+
+### Start database
+
+```BASH
+sudo docker-compose start db
+```
+
+### Start local web at localhost/8000:
+
+```BASH
+sudo docker-compose up web
+```
+
+### Stop local web:
+
+```
+CTRL+C
+```
+
+### Stop database:
+
+```
+sudo docker-compose stop db
+```
+
+### Useful commands:
+
+```BASH
+sudo docker-compose run web python manage.py migrate
+sudo docker-compose run web python manage.py makemigrations infoscreen members webapp
+sudo docker-compose run web python manage.py migrate
+sudo docker-compose run web python manage.py createsuperuser
+```