add missing br (#86)

Author: baylanger

tesla_ble_mqtt/CHANGELOG.md

@@ -5,7 +5,7 @@
 ### Changed
 
 <p>WARNING WARNING WARNING<br>
-DO NOT UPGRADE PRIOR TO READ THE 0.1.0 UPGRADE INSTRUCTIONS.
+DO NOT UPGRADE PRIOR TO READ THE 0.1.0 UPGRADE INSTRUCTIONS<br>
 WARNING WARNING WARNING</p>
 
 - CHG: Fix upgrade forcing to redeploy the key to the car