[2pt] Create a guideline for describing Tarantool configuration parameters

[veod32]

Root document: https://www.tarantool.io/en/doc/latest/contributing/docs/examples/

ToDo

Create a guideline for describing Tarantool configuration parameters and API function parameters (:param:).

We already have templates for documenting functions, classes, methods, and data. But description of configuration parameters has its own specifics. The following info should be provided for each parameter:

• Since which Tarantool version
• General description with all the details and examples (if needed)
• Type
• Corresponding environment variable
• Default value
• Dynamic (yes or no)
• Possible errors

[patiencedaur]

Do this next: #2722