add doc page for floating menu

docs/src/docPages/api/extensions/floating-menu.md

@@ -0,0 +1,41 @@
+# Floating Menu
+[![Version](https://img.shields.io/npm/v/@tiptap/extension-floating-menu.svg?label=version)](https://www.npmjs.com/package/@tiptap/extension-floating-menu)
+[![Downloads](https://img.shields.io/npm/dm/@tiptap/extension-floating-menu.svg)](https://npmcharts.com/compare/@tiptap/extension-floating-menu?minimal=true)
+
+This extension will make a contextual menu appear near a selection of text.
+
+## Installation
+```bash
+# with npm
+npm install @tiptap/extension-floating-menu
+# with Yarn
+yarn add @tiptap/extension-floating-menu
+```
+
+## Settings
+| Option       | Type          | Default   | Description                   |
+| ------------ | ------------- | --------- | ----------------------------- |
+| element      | `HTMLElement` | `null`    | The DOM element of your menu. |
+
+## Source code
+[packages/extension-floating-menu/](https://github.com/ueberdosis/tiptap-next/blob/main/packages/extension-floating-menu/)
+
+## Using Vanilla JavaScript
+```js
+import { Editor } from '@tiptap/core'
+import FloatingMenu from '@tiptap/extension-floating-menu'
+
+new Editor({
+  extensions: [
+    FloatingMenu.configure({
+      element: document.querySelector('.menu'),
+    }),
+  ],
+})
+```
+
+## Using a framework
+<demos :items="{
+  Vue: 'Extensions/FloatingMenu/Vue',
+  React: 'Extensions/FloatingMenu/React',
+}" />