Readme worker update

Description

Updates the README to include instructions on how to start a worker.

Changes

Additions

• Added example commands for docker and the jar
• Added tables of environment variables and arguments

Review

To be filled in by the reviewers

• There are no unnecessary files present in the MR

• The continuous integration has no problems with the MR

• The MR is filled in as requested (including labels, milestones, and reviewers)

• The documentation is up-to-date

README.md

@@ -28,7 +28,35 @@ The server allows for set-up using username `admin` and password `admin`. Config
 as needed and restart the process.
 
 ### Worker
-This is currently a work in progress. Ask Ewoud for details 🛂
+Workers can be started with the worker jar or the worker docker image:
+
+**Jar**:
+```sh
+java -jar worker.jar name=$NAME host=$HOST api-token=$APITOKEN api-protocol=$PROTOCOL api-port=$PORT
+```
+A table of arguments and their description: 
+
+| Argument     | Description                              | Required | Default   |
+|--------------|------------------------------------------|----------|-----------|
+| name         | The name of this worker                  | 👌       | N/A       |
+| api-token    | Worker API token                         | 👌       | N/A       |
+| host         | The host on which to reach the core      | 🙅       | localhost |
+| api-protocol | Protocol to use for the API (http/https) | 🙅       | https     |
+
+**Docker**:
+```sh
+docker run -e {environment variables} wukl/auta-worker
+```
+As opposed to running the worker with the jar, all environment variables are mandatory.
+
+A table of environment variables that should be passed to the container:
+
+| Environment variable | Description                              |
+|----------------------|------------------------------------------|
+| COREADDRESS          | Address to reach the core on             |
+| APIKEY               | Worker API token                         |
+| APIPORT              | Port to reach the API on                 |
+| APIPROTOCOL          | Protocol to use for the API (http/https) |
 
 
 ### Devops