feat(byRole): add documentation for new option (aria-current) of ByRole queries#822

eps1lon merged 3 commits intotesting-library:maintesting-library/testing-library-docs:mainfrom

savcni01:feat/aria-current-in-by-fole-864savcni01/testing-library-docs:feat/aria-current-in-by-fole-864Copy head branch name to clipboard