docs: updated README and contributors

Closes #160
7 jobs for !177 with fix/readme_collaborators in 4 minutes and 30 seconds (queued for 1 minute and 33 seconds)
detached
Status Job ID Name Coverage
  Check
passed #899932
docker
check_back

00:00:21

passed #899933
docker
check_front

00:01:26

 
  Test
passed #899934
docker
test_back

00:01:14

80.0%
passed #899935
docker
test_frontend

00:00:24

 
  Lint
passed #899937
docker
eslint

00:00:35

passed #899936
docker
flake8

00:00:14

 
  Svg Gen Docu
passed #899938
docker
generate_UML_svg

00:00:14