Update README.

Author: mobizt

README.md

@@ -10,7 +10,7 @@ The library supports Arduino NANO 33 IoT, Arduino MKR WiFi 1010, Arduino MKR VID
 
 Due to the different of platform's available memory, flash size, and WiFiClient functionalities which required the performance and memory optimization rather than the compatibility viewpoint of the standard Arduino WiFiClient function, the Firebase libraries will be fine tuned for different WiFi capable platforms.
 
-Other WiFi-Serial bridge libraries and similar firmware that claim to be working with WiFi are not highly recommended due to lack of required functions based on the core SSL/TLS provider.
+Install the library on the WiFi capable device is highly recommended. For non-WiFi capable devices, using the WiFi-Serial bridge libraries and similar firmwares included AT in ESP8266 and ESP32 WiFi moules that claim to be working are not highly recommended due to lack of performance. 
 
 
 For Espressif MCUs, please try [ESP8266 Firebase Arduino library]( https://github.com/mobizt/Firebase-ESP8266) and [ESP32 Firebase Arduino library]( https://github.com/mobizt/Firebase-ESP32)