Add new `escape` node to `doc/Nodes.md`
Add new `escape` node to `doc/Nodes.md`

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