🐛 Fix: undefined variable in reference block (#45)
🐛 Fix: undefined variable in reference block (#45)

Co-authored-by: Chris Sewell <4eda6a6ea69f9b2136b57a599601da2cc77e8290@hotmail.com>
executablebooks/markdown-it-py,executablebooks/markdown-it-py,executablebooks/markdown-it-py