Update README.md

ivlovric · web-flow · commit 1acbd4569322 · 2021-09-20T13:59:08.000+02:00
diff --git a/README.md b/README.md
@@ -28,6 +28,8 @@ Options:
     	Debug options are off or on (default "off")
   -prom string
     	Prometheus metrics port (default "8090")
+  -v  
+      Prints current HFP version
 ```
 
 ### Build
