[ftr] Add contributors to README via @all-contributors

[daniel-jettka]

Is your feature request related to a problem? Please describe.
Installed https://github.com/all-contributors/allcontributors.org for Edirom organization.

Describe the solution you'd like
Collect and mention all contributors and their contribution topics via
@all-contributors please add @THECONTRIBUTOR for topicA, topicB and topicC

https://allcontributors.org/bot/usage/

[daniel-jettka]

@all-contributors please add @daniel-jettka for bug, code, doc, projectManagement, eventOrganizing, ideas, infra, maintenance, review, test.