docs: add plugin

Author: noxoua

content/plugins/images/noxoua-filament-coupons.png

@@ -0,0 +1,15 @@
+---
+name: Filament Coupons
+slug: noxoua-filament-coupons
+author_slug: noxoua
+categories: [panel-builder]
+description: A flexible coupon management system for Filament 3.x with customizable strategies and usage tracking.
+discord_url: Add commentMore actions
+docs_url: https://raw.githubusercontent.com/noxoua/filament-coupons/main/README.md
+url:
+github_repository: noxoua/filament-coupons
+has_dark_theme: true
+has_translations: true
+versions: [3]
+publish_date: 2025-06-03
+---