Disable linting Markdown files
Disable linting Markdown files

Linting Markdown files consumes too much time causing builds to
time out. We either need a strategy for parallelization or lint
only those files which have changed.

stdlib-js/stdlib,stdlib-js/stdlib,stdlib-js/stdlib,stdlib-js/stdlib,stdlib-js/stdlib,stdlib-js/stdlib,stdlib-js/stdlib,stdlib-js/stdlib