docs: improve README (How to start VM with a custom CFSLL port?)

README.md

@@ -64,7 +64,7 @@ vagrant up
 vagrant destroy -f
 ```
 
-#### Starts the VM with a custom CFSLL port and a custom CFSSL IP address
+#### How to start the VM with a custom CFSLL port or a custom CFSSL IP address?
 
 ```bash
 # Creates and starts the VM (Virtual Machine)