tt instance parameters in instances.yml

[p7nov]

Epic: Document TT CLI

Product: Tarantool CLI
Since: TBD
Audience/target: dev, admin
Root document: https://www.tarantool.io/en/doc/latest/reference/tooling/tt_cli/multiple_instances/
SME: @ 0x501D

Details

The doc on tt CLI instance configuration (instances.yml) reflects the first dev iteration: instances can have only names. However, the specification in the tt repo suggests that they will also have parameters:

instance_name:
  parameter: value

Need to extend the user doc when parameters are implemented

Definition of done

• tt instance configuration doc contains the list of instance parameters with descriptions.