Edit README.md to describe users option

README.md

@@ -26,6 +26,9 @@ Here is a summary of the options that can be used with the script:
 # deploy the ubuntu_base role only
 ./deploy.sh base
 
+# deploy user setup only
+./deploy.sh users
+
 # deploy the docker role only
 ./deploy.sh services
 

deploy.sh

@@ -4,6 +4,7 @@ usage () {
     {
         echo "Usage: $0 [--vagrant]"
         echo "Usage: $0 [--vagrant] base"
+        echo "Usage: $0 [--vagrant] users"
         echo "Usage: $0 [--vagrant] services [SERVICE]"
     } >&2
 }