Update README.md

README.md

@@ -85,7 +85,7 @@ Running this microservice will provide a findable service (via ZeroConf) that wi
 Health is determined by a state machine with states of "**UNKNOWN**", "**DEGRADED**", "**UNHEALTHY**", and "**HEALTHY**".  
 The parameters settings `unhealthy` and `healthy` determine the threshold of when to transition to the next state.
 <p align="center">
-  <img src="https://github.com/dwightmulcahy/healthchecker.server/blob/master/img/statemachine.png?raw=true" height="200"/>
+  <img src="https://github.com/dwightmulcahy/healthchecker.server/blob/master/img/statemachine.svg?raw=true" height="200"/>
 </p>
 
 ## HealthCheckerServer Class
@@ -194,4 +194,4 @@ Valid values: 2 to 10 times, Default: 10 times
 Passing `localhost` to `HealthChecker.Server` is meaningless when more then likely they will exist on different servers and or domains.
 This will return the IP address of the local machine.
 ## findFreePort()
-Finds a port that is free at the current IP address.
+Finds a port that is free at the current IP address.