Merge pull request #1264 from custom-components/acconeer_XM126_docs

Add acconeer XM126 docs

Author: Ernst79

docs/_devices/Acconeer_xm126.md

@@ -0,0 +1,18 @@
+---
+manufacturer: Acconeer
+name: XM126
+model: Acconeer XM126
+image: Acconeer_XM126.jpg
+physical_description:
+broadcasted_properties:
+  - motion
+  - temperature
+  - battery
+  - rssi
+broadcasted_property_notes:
+broadcast_rate:
+active_scan:
+encryption_key:
+custom_firmware:
+notes:
+---