Declaring parameters section outdated in the documentation

[dhunstack]

In the link, https://essentia.upf.edu/extending_essentia.html#declaring-needed-parameters the methods described for declaring parameters are outdated. Current code only seems to support this declaration -

void Configurable::declareParameter(const string& name, const string& desc, const string& range, const Parameter& defaultValue)

https://github.com/MTG/essentia/blob/52d8a35a2a51837df116a7e460f07384d0214838/src/essentia/configurable.h#L115