Rename Tutorial to Quickstart (#1245)

## Description

Rename Tutorial to Quickstart

Content rework to follow later

## Type of change

<!--- Please check the type of change your PR introduces: --->
- [x] 🗺️ Documentation

docs/docs/intro.md

@@ -12,5 +12,6 @@ beyond M365, will expand based on the interest and needs of the community.
 
 ## Getting started
 
-Follow the instructions in the [Initial Setup](/setup/concepts) section to setup Corso and get it ready for first use.
-You can then go through the [Tutorial](/tutorial) section to see it in action.
+You can follow the [Quick Start](/quickstart) guide for an end-to-end Corso walk through. Alternatively, follow
+the instructions in the [Initial Setup](/setup/concepts) section to dive into the details on how to configure and
+run Corso.

docs/docs/quickstart.md

@@ -1,10 +1,9 @@
-# Tutorial
+# Quick start
 
-In this tutorial you will perform your first backup followed by a restore.
+In this quick start guide, you will perform your first backup followed by a restore.
 
 ## Prerequisites
 
-* Install Docker
 * Configure connection to your M365 Tenant (see [M365 Access](/setup/m365_access))
 * Initialize a Corso backup repository (see [Repositories](/setup/repos))
 

docs/sidebars.js

@@ -16,7 +16,7 @@ const sidebars = {
   // By default, Docusaurus generates a sidebar from the docs folder structure
   docsSidebar: [
     'intro',
-    'tutorial',
+    'quickstart',
     {
       type: 'category',
       label: 'Initial setup',