add toggleMark command

packages/core/src/commands/selectParentNode.ts

@@ -0,0 +1,15 @@
+import { Editor } from '../Editor'
+import { selectParentNode } from 'prosemirror-commands'
+
+type SelectParentNode = () => any
+
+declare module '../Editor' {
+  interface Editor {
+    selectParentNode: SelectParentNode,
+  }
+}
+
+export default (next: Function, { state, view }: Editor): SelectParentNode => () => {
+  selectParentNode(state, view.dispatch)
+  next()
+}