Docker Command In ReadMe Not Working

[KMCGit]

I attempted to use the following command to change the Port the application ran on

docker run -p 8081:8080
-e SERVER_ADDRESS="http://localhost:8081/fhir" \
alphora/cqf-ruler

docker run -p 8081:8080 -e SERVER_ADDRESS="http://localhost:8081/fhir" alphora/cqf-ruler

---

APPLICATION FAILED TO START

---

Description:

Failed to bind properties under 'server.address' to java.net.InetAddress:

Property: server.address
Value: "http://localhost:8081/fhir"
Origin: System Environment Property "SERVER_ADDRESS"
Reason: failed to convert java.lang.String to java.net.InetAddress (caused by java.net.UnknownHostException: http://localhost:8081/fhir: Name or service not known)

Action:

Update your application's configuration

(I just wanted to point out / share as it is instructed in the ReadMe and does not work as intended/instructed)

What would then be the best way to change the port?