doc: update README

README.md

@@ -69,9 +69,7 @@ You can install the application using `go install`.
 go install github.com/hiago-balbino/random-luck/cmd/luckctl@latest
 ```
 
-Then you can run the application using `luckctl`. Note that if you want to run anywhere you need to export the environment variables.
-```
-luckctl
+Then you can run the application using `luckctl`. Note that if you want to run anywhere you need to export the `$GOPATH/bin/luckctl` to your `$PATH` environment variables.
 ```
 luckctl --games=2 --numbers=6
 ```