docs: Add docstrings for catdomain and catcodomain#485

lkdvos merged 1 commit into

QuantumKitHub:mainQuantumKitHub/TensorKit.jl:mainfrom

VinceNeede:vb-update_catdomain/catcodomain_docsVinceNeede/TensorKit.jl:vb-update_catdomain/catcodomain_docsCopy head branch name to clipboard