add basic collab implementation

examples/Components/Routes/Collaboration/Collab.js

@@ -0,0 +1,12 @@
+import { Extension } from 'tiptap'
+import { collab } from 'prosemirror-collab'
+
+export default class CollabExtension extends Extension {
+  get name() {
+    return 'collab'
+  }
+
+  get plugins() {
+    return [collab()]
+  }
+}