Add Appdevcon 2026 including CfP info

balazsgerlei · balazsgerlei · commit 575f73776004 · 2025-09-08T14:40:54.000+02:00
diff --git a/_conferences/appdevcon-2026.md b/_conferences/appdevcon-2026.md
@@ -0,0 +1,13 @@
+---
+name: "AppDevCon"
+website: https://appdevcon.nl/
+location: Amsterdam, Netherlands
+
+date_start: 2026-03-10
+date_end:   2026-03-13
+
+cfp:
+  start: 2025-09-01
+  end:   2025-12-19
+  site:  https://sessionize.com/adc-dpc-wdc-2026/
+---
