Merge pull request #853 from balazsgerlei/mdevcamp-2026

Add info about mDevCamp 2026, including CfP

Author: JakeWharton

_conferences/mdevcamp-2026.md

@@ -0,0 +1,14 @@
+---
+name: "mDevCamp"
+website: https://mdevcamp.eu/
+location: Prague, Czech Republic
+online: false
+
+date_start: 2026-06-03
+date_end:   2026-06-04
+
+cfp:
+  start:  2025-10-17
+  end:    2025-11-30
+  site:   https://docs.google.com/forms/d/e/1FAIpQLScTA4u1rd2moKsMF9Uclx7NruudYDvpbmB9AIt4WYV6mQNMTQ/viewform
+---