* Bump minimum node version to 16. We already made the mistake of using features from 16 without realising Previously: https://github.com/matrix-org/mjolnir/pull/192 * Make sure CI uses specific version of node and we also lint. https://github.com/matrix-org/pipelines/blob/master/mjolnir/pipeline.yml#L13
* improve documentation * incorperate documentation of configuration into sample file