Add upgrade guide documentation

docs/.vitepress/config.mts

@@ -54,5 +54,11 @@ export default defineConfig({
       { icon: 'github', link: 'https://git.homebox.software' },
       { icon: 'mastodon', link: 'https://noc.social/@sysadminszone' },
     ]
+  },
+
+  markdown: {
+    image: {
+      lazyLoading: true
+    }
   }
 })

docs/.vitepress/menus/en.mts

@@ -4,8 +4,9 @@ export default [
         items: [
             {text: 'Quick Start', link: '/en/quick-start'},
             {text: 'Installation', link: '/en/installation'},
-            {text: 'Organizing Your Items', link: '/en/organizing-items'},
             {text: 'Configure Homebox', link: '/en/configure-homebox'},
+            {text: 'Upgrade', link: '/en/upgrade'},
+            {text: 'Organizing Your Items', link: '/en/organizing-items'},
             {text: 'Tips and Tricks', link: '/en/tips-tricks'}
         ]
     },

docs/en/upgrade.md

@@ -0,0 +1,13 @@
+# Upgrade
+
+## From v0.x.x to v1.0.0
+
+::: danger Breaking Changes
+This upgrade process involves some potentially breaking changes, please review this documentation carefully before beginning the upgrade process, and follow it closely during your upgrade.
+:::
+
+### Configuration Changes
+#### Database Configuration
+- `HBOX_STORAGE_SQLITE_URL` has been replaced by `HBOX_DATABASE_SQLITE_PATH`
+- `HBOX_DATABASE_DRIVER` has been added to set the database type, valid options are `sqlite3` and `postgres`
+- `HBOX_DATABASE_HOST`, `HBOX_DATABASE_PORT`, `HBOX_DATABASE_USERNAME`, `HBOX_DATABASE_DATABASE`, and `HBOX_DATABASE_SSL_MODE` have been added to configure postgres connection options.