Clarification for condition table what happens if a parameter ID is provided as value

[matthiaskoenig]

Hi all,
in the condition table it should be clarified what happens if a parameter ID is provided for a parameter ID value:
https://petab.readthedocs.io/en/latest/documentation_data_format.html#condition-table

${parameterId}
The values will override any parameter values specified in the model.

Should read:

${parameterId}
The values will override any parameter values specified in the model.
If a parameter ID is provided, it is interpreted as the initial parameter value.

[dweindl]

Agreed. Related to the discussion in #538, where the handling of rule-targets in the condition table is clarified. Should be added there.