Update README.md

Author: shahar603

README.md

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 <p align="center">An Open Source REST API of Rocket Launch telemetry</p>
 
 <p align="center">
-  <img src="https://live.staticflickr.com/65535/32829382467_783e520730_b.jpg"/>
+  <img src="https://i.imgur.com/1awBiUj.png"/>
 </p>