docs: update getting started guide

docs/src/docPages/guide/getting-started/vue-cli.md

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+# Vue CLI
+
+## toc
+
+## Introduction
+The following guide describes how to add tiptap to your Vue CLI project. If you’ve got Vue CLI on your machine already, you can skip the first step.
+
+## Requirements
+* [Node](https://nodejs.org/en/download/) installed on your machine
+* Experience with [Vue](https://vuejs.org/v2/guide/#Getting-Started)
+
+## 1. Install Vue CLI (optional)
+Vue CLI aims to be the standard tooling baseline for the Vue ecosystem, and helps to create new projects quickly. If you’re working with Vue a lot, chances are you have this installed already. Just skip this step then.
+
+Here is how you could install (or update) it:
+
+```bash
+# with npm
+npm install -g @vue/cli
+
+# with Yarn
+yarn global add @vue/cli
+```
+
+From now on, the `vue` command is available globally. Test it with `vue --version`, this should output the current version.
+
+## 2. Create a project (optional)
+If you already have an existing Vue project, that’s fine too. Just skip this step and proceed with the next step.
+
+For the sake of this guide, let’s start with a fresh Vue project called `tiptap-example`. The Vue CLI sets up everything we need, just select the default Vue 2 template.
+
+```bash
+# create a project
+vue create tiptap-example
+
+# change directory
+cd tiptap-example
+```
+
+## 3. Install the dependencies
+Okay, enough of the boring boilerplate work. Let’s finally install tiptap! For the following example you’ll need the `@tiptap/core` (the actual editor) and the `@tiptap/vue-starter-kit` which has everything to get started quickly, for example a few default extensions and a basic Vue component.
+
+```bash
+# install with npm
+npm install @tiptap/core @tiptap/vue-starter-kit
+
+# install with Yarn
+yarn add @tiptap/core @tiptap/vue-starter-kit
+```
+
+If you followed step 1 and 2, you can now start your project with `npm run serve` or `yarn serve`, and open [http://localhost:8080/](http://localhost:8080/) in your favorite browser. This might be different, if you’re working with an existing project.
+
+## 4. Create a new component
+To actually start using tiptap, you’ll need to add a new component to your app. Let’s call it `Tiptap` and put the following example code in `src/components/Tiptap.vue`.
+
+This is the fastest way to get tiptap up and running with Vue. It will give you a very basic version of tiptap, without any buttons. No worries, you will be able to add more functionality soon.
+
+<demo name="Guide/GettingStarted" />
+
+## 5. Add it to your app
+Now, let’s replace the content of `src/App.vue` with the following example code to use our new `Tiptap` component in our app.
+
+```js
+<template>
+  <div id="app">
+    <tiptap />
+  </div>
+</template>
+
+<script>
+import Tiptap from './components/Tiptap.vue'
+
+export default {
+  name: 'App',
+  components: {
+    Tiptap
+  }
+}
+</script>
+```
+::: warning Nuxt.js
+If you use Nuxt.js, note that tiptap needs to run in the client, not on the server. It’s required to wrap the editor in a `<client-only>` tag.
+:::
+
+You should now see tiptap in your browser. You’ve successfully set up tiptap! Time to give yourself a pat on the back. Let’s start to configure your editor in the next step.