code cleaning

Author: isbkch

README.md

@@ -65,7 +65,7 @@ DHT11 - Schematic Diagram
 
 Wire the [DHT11](https://amzn.to/2Qs9fcV) sensor to the [Arduino Uno](https://amzn.to/2RnHhPY) development board as shown in the following schematic diagram.
 
-<img align="center" src="https://github.com/MecaHumArduino/arduino-uno-aws-weather-station/blob/master/docs/dht11-wiring.png?raw=true" style="max-width:100%;" height="350">
+<img align="center" src="https://github.com/MecaHumArduino/arduino-uno-aws-weather-station/blob/master/docs/dht11-wiring.png?raw=true" style="max-width:100%;" height="600">
 
 LCD Screen - Schematic Diagram
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@@ -81,7 +81,7 @@ ESP8266 ESP01 - Schematic Diagram
 
 The ESP8266 WiFi Module is a self-contained stack that can give any microcontroller access to your WiFi network. The ESP8266 is capable of either hosting an application or offloading all Wi-Fi networking functions from another application processor. The ESP8266 module is an extremely cost-effective board with a huge, and ever-growing, community.
 
-<img align="center" src="https://github.com/MecaHumArduino/arduino-uno-aws-weather-station/blob/master/docs/esp8266-schema.png?raw=true" style="max-width:100%;" height="350">
+<img align="center" src="https://github.com/MecaHumArduino/arduino-uno-aws-weather-station/blob/master/docs/esp8266-schema.png?raw=true" style="max-width:100%;" height="600">
 
 Code Walkthrough
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