docs(showcase): added dailyhn.com (#16482)

Author: JoeriSmits

docs/sites.yml

@@ -6900,3 +6900,17 @@
   built_by: Michael Uloth
   built_by_url: https://www.michaeluloth.com
   featured: false
+- title: Daily Hacker News
+  url: https://dailyhn.com
+  main_url: https://dailyhn.com
+  description: >
+    Daily Hacker News presents the top five stories from Hacker News daily.
+  categories:
+    - Entertainment
+    - Design
+    - Web Development
+    - Technology
+    - Science
+  built_by: Joeri Smits
+  built_by_url: https://joeri.dev
+  featured: false