readme, gitignore and added new images

Author: pkarun

.gitignore

@@ -1 +1,2 @@
-my_secret.h
+my_secret.h
+*.bin

README.md

@@ -7,6 +7,7 @@ Blynk PZEM 004T 3 Phase failure motor automation.
 3) Auto Mode ON/OFF - With Auto Mode ON, it turn ON Relay 1 and Relay 2 if it meets all 3 Phase voltage reaches minimum voltage value, if any those condition don't satisify it won't turn on</br> 
 4) If voltage is lessthan minimum set value for all 3 Phase, then it turn OFF Relay 1 and Relay 2</br>
 5) Show sum of voltage, current usage, active power, active energy, frequency and power factor</br>
+6) You can update firmware using "HTTP Server OTA" method. In other words, through internet you can update firware without having physical access to device or without connecting to same network</br>
 
 <h2>Requirements</h2>
 1) <a href ="http://s.click.aliexpress.com/e/ElytDjIu">3 PZEM-004T v3.0</a></br> 
@@ -65,6 +66,8 @@ GND to GND</br>
 
 <img src="/images/pzem-004t-3-phase-failure-automation-screenshot-3.png" alt="Blynk PZEM 004T 3 Phase Failure Automation Screenshot 3" title="Blynk PZEM 004T 3 Phase Failure Automation Screenshot 3" width="350" height="" style="max-width:100%;">
 
+<img src="/images/pzem-004t-3-phase-failure-automation-screenshot-4.png" alt="Blynk PZEM 004T 3 Phase Failure Automation Screenshot 4" title="Blynk PZEM 004T 3 Phase Failure Automation Screenshot 4" width="350" height="" style="max-width:100%;">
+
 <h2>Scan QR Code on Blynk App</h2>
 
 <img src="/images/blynk-qr-code.png" alt="Blynk Project QR code" title="Blynk Project QR code" style="max-width:100%;"></a>