add HTMLAttributes to defaultoptions

packages/extension-blockquote/src/index.ts

@@ -1,11 +1,21 @@
 import { Command, createNode } from '@tiptap/core'
 import { wrappingInputRule } from 'prosemirror-inputrules'
 
+export interface BlockquoteOptions {
+  HTMLAttributes: {
+    [key: string]: any
+  },
+}
+
 export const inputRegex = /^\s*>\s$/gm
 
 const Blockquote = createNode({
   name: 'blockquote',
 
+  defaultOptions: <BlockquoteOptions>{
+    HTMLAttributes: {},
+  },
+
   content: 'block*',
 
   group: 'block',