Format notices as blockquotes in README file

README.md

@@ -4,9 +4,11 @@ ESPurna ("spark" in Catalan) is a custom firmware for ESP8266 based smart switch
 It was originally developed with the **[IteadStudio Sonoff](https://www.itead.cc/sonoff-wifi-wireless-switch.html)** in mind but now it supports a growing number of ESP8266-based boards.
 It uses the Arduino Core for ESP8266 framework and a number of 3rd party libraries.
 
-**Current Release Version is 1.9.3**, read the [changelog](https://bitbucket.org/xoseperez/espurna/src/master/CHANGELOG.md).
+> **Current Release Version is 1.9.3**, read the [changelog](https://bitbucket.org/xoseperez/espurna/src/master/CHANGELOG.md).
 
-**NOTE**: since version 1.9.0 the default **MQTT topics for commands have changed**. They all now end with "/set". This means you will have to change your controller software (Node-RED or alike) to send messages to -for instance- "/home/living/light/relay/0/set". The device will publish its state in "/home/living/light/relay/0" like before.
+> **NOTICE**: Default flash layout changed in 1.8.3, as an unpredicted consequence devices will not be able to persist/retrieve configuration if flashed with 1.8.3 via **OTA** from **PlatformIO**. Please check issue #187.
+
+> **NOTICE**: since version 1.9.0 the default **MQTT topics for commands have changed**. They all now end with "/set". This means you will have to change your controller software (Node-RED or alike) to send messages to -for instance- "/home/living/light/relay/0/set". The device will publish its state in "/home/living/light/relay/0" like before.
 
 ## Features