Add zh-hans translation for accessibility guide, filter language switcher to translated articles - #3736

Add zh-hans translation for accessibility guide, filter language switcher to translated articles#3736

czllll wants to merge 3 commits into

github:maingithub/opensource.guide:mainfrom

czllll:fix/a11y-zh-hans-and-language-switcherczllll/opensource-guide-a11y-fix:fix/a11y-zh-hans-and-language-switcherCopy head branch name to clipboard