[Plugin] Combobox Filament v4 support

Author: novadaemon

content/plugins/novadaemon-combobox.md

@@ -5,10 +5,12 @@ author_slug: novadaemon
 categories: [form-builder, form-field]
 description: Side by side combobox multiselect field.
 discord_url: https://discord.com/channels/883083792112300104/1270164268867784794
-docs_url: https://raw.githubusercontent.com/novadaemon/filament-combobox/main/README.md
+docs_url: 
+    v3: https://raw.githubusercontent.com/novadaemon/filament-combobox/1.x/README.md
+    v4: https://raw.githubusercontent.com/novadaemon/filament-combobox/2.x/README.md
 github_repository: novadaemon/filament-combobox
 has_dark_theme: true
 has_translations: true
-versions: [3]
+versions: [3, 4]
 publish_date: 2024-08-30
 ---