move extensions to own package

packages/tiptap-extensions/src/marks/Code.js

@@ -0,0 +1,29 @@
+import { Mark } from 'tiptap'
+import { toggleMark } from 'tiptap-commands'
+
+export default class CodeMark extends Mark {
+
+	get name() {
+		return 'code'
+	}
+
+	get schema() {
+		return {
+			parseDOM: [
+				{ tag: 'code' },
+			],
+			toDOM: () => ['code', 0],
+		}
+	}
+
+	keys({ type }) {
+		return {
+			'Mod-`': toggleMark(type),
+		}
+	}
+
+	command({ type }) {
+		return toggleMark(type)
+	}
+
+}