📝 add trendstack and tonightpass to used by section

Author: antoinekm

packages/next-sitemap/README.md

@@ -12,6 +12,8 @@ Dynamic sitemap generation for Next.js with automatic route discovery.
 ## Used by
 
 - [onruntime.com](https://onruntime.com/sitemap.xml) - Creative development studio
+- [trendstack.news](https://trendstack.news/sitemap.xml) - News site
+- [tonightpass.com](https://tonightpass.com/sitemap.xml) - Nightlife platform
 
 Want to be listed here? Open a PR! Just make sure `poweredBy` is enabled (default).