Document the upgrade

Author: tonysm

docs/index.md

@@ -1,3 +1,5 @@
+* Prologue
+    * [Upgrade Guide](/docs/{{version}}/upgrade)
 * Getting Started
     * [Installation](/docs/{{version}}/installation)
     * [Overview](/docs/{{version}}/overview)

docs/upgrade.md

@@ -0,0 +1,19 @@
+# Upgrade Guide
+
+## Upgrading from 1.x to 2.x
+
+For version 2.x, we're migrating from `hotwired/turbo-laravel` to `hotwired-laravel/turbo-laravel`. That's just so folks don't get confused thinking this is an official Hotwired project, which it's not. Even if you're on `1.x`, it's recommended to migrate to `hotwired-laravel/turbo-laravel`.
+
+First, update the namespaces from the previous package. You can either do it from your IDE by searching for `Tonysm\TurboLaravel` and replacing it with `HotwiredLaravel\TurboLaravel` on your application (make sure you include all folders), or you can run the following command if you're on a macOS or Linux machine:
+
+```bash
+find app config resources tests -type f -exec sed -i 's/Tonysm\\TurboLaravel/HotwiredLaravel\\TurboLaravel/g' {} +
+```
+
+Next, require the new package and remove the previous one:
+
+```bash
+composer require hotwired-laravel/turbo-laravel:2.0.0-beta1
+
+composer remove hotwired/turbo-laravel
+```