- Add a new "Configuration for contributors" doc page. Move settings that are not recommended for production use
- Remove settings modified in the `config` YAML document from the deploying/configuration doc page
- Document all keys in `config` and `teams` YAML documents
- Add comments to several `.go` files and remove unused struct
This adjusts functions related to applying team specs to make sure the `features` key works as expected, this is:
1. Create Team flow
1. if no features are provided, we copy whatever features are set in the global config
2. otherwise, we generate a new config merging whatever is provided with the defaults for new installs.
2. Edit Team flow: we always generate a new config merging whatever is provided with the defaults for new installs.
