Add support for passing a file-path to `FileSet#add`
Add support for passing a file-path to `FileSet#add`

eush77/remark,wooorm/remark,ulrikaugustsson/mdast,chcokr/mdast,eush77/remark,yukkurisinai/mdast,ulrikaugustsson/mdast,chcokr/mdast,yukkurisinai/mdast,tanzania82/remarks