docs: improve Deploy Admin to Netlify documentation (#1757)

* changes to deployment pages structure

* fix sidebar links

* added button to quickstart

* comment out button

* comment out button

* added note

* small fixes

* small fixes

docs/content/admin/quickstart.md

@@ -1,10 +1,4 @@
----
-
-title: Medusa Admin Quickstart
-
----
-
-# Admin Quickstart
+# Medusa Admin Quickstart
 
 This document will guide you through setting up the Medusa admin in minutes, as well as some of its features.
 
@@ -18,6 +12,12 @@ If you’re not very familiar with Medusa’s architecture, you can learn more a
 
 :::
 
+<!-- ## Instant Deployment to Netlify
+
+Instead of manually following this guide to install then later deploy the Medusa Admin, you can deploy the Medusa Admin to Netlify with this button:
+
+[![Deploy to Netlify](https://www.netlify.com/img/deploy/button.svg)](https://app.netlify.com/start/deploy?repository=https://github.com/medusajs/admin) -->
+
 ## Install the Admin
 
 Start by cloning the [Admin GitHub repository](https://github.com/medusajs/admin) and changing to the cloned directory: