Update README.md

Author: sonus21

README.md

@@ -16,7 +16,7 @@ well, where all services code is in Spring.
 
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-[![Message Flow](https://raw.githubusercontent.com/sonus21/rqueue/master/docs/static/rqueue-message-flow.jpg)](https://raw.githubusercontent.com/sonus21/rqueue/master/docs/static/qrqueue-message-flow.jpg)
+![Message Flow](https://raw.githubusercontent.com/sonus21/rqueue/master/docs/static/rqueue-message-flow.svg?sanitize=true)
 
 ## Features