Adds REDIS_URL to .local.env (#1468)

Author: rithviknishad

docker/.local.env

@@ -4,6 +4,7 @@ POSTGRES_HOST=db
 POSTGRES_DB=care
 POSTGRES_PORT=5432
 DATABASE_URL=postgres://postgres:postgres@db:5432/care
+REDIS_URL=redis://redis:6379
 CELERY_BROKER_URL=redis://redis:6379/0
 
 DJANGO_DEBUG=False