docs: add 2026 poster (#11)

Kyle9410-Chen · web-flow · commit 582fe49853fa · 2026-01-15T18:26:27.000+09:00
diff --git a/_redirects/2026poster.md b/_redirects/2026poster.md
@@ -0,0 +1,6 @@
+---
+layout: redirect
+title: "SITCON 2026 海報"
+description: "若有任何疑問也歡迎透過電子郵件 contact@sitcon.org 與我們聯繫。"
+redirect_to: "https://drive.google.com/file/d/1jqFOa0jxX1yzjrl5LnjqYK_rTTU44nJU/view?usp=sharing"
+---
