In passing, some exgtensions I’m using to support authoring markdown in VS Code:
valentjn.vscode-ltex: extension that adds language tools support (spell-checking, grammar checking, duplicate word detection etc.) using
languagetool; I haven’t yet found a simple Jupyter extension that provides languagetool checks for Jupyter markdown cells;
shd101wyy.markdown-preview-enhanced: super-extension to support all sorts of rich editing;
DougFinke.vscode-pandoc: export markdown directly to PDF, HTML or MS Word documents.
See also: VS Code as an Integrated, Extensible Authoring Environment for Rich Media Asset Creation and the (should now be deprecated?) Fragment: More Typo Checking for Jupyter Notebooks — Repeated Words and Grammar Checking.