[NRL-662] Update README to represent changes in next release

Author: mattdean3-nhs

Makefile

@@ -11,7 +11,8 @@ DIST_PATH ?= ./dist
 TEST_ARGS ?= --cov --cov-report=term-missing
 FEATURE_TEST_ARGS ?= ./tests/features --format progress2
 TF_WORKSPACE ?= $(shell terraform -chdir=terraform/infrastructure workspace show)
-
+ENV ?= dev
+APP_ALIAS ?= default
 
 export PATH := $(PATH):$(PWD)/.venv/bin