Add missing line breaks for improved readability in Puma configuration

Author: GrantBirki

spec/acceptance/config/puma.rb

@@ -4,9 +4,12 @@
 require "json"
 
 bind "tcp://0.0.0.0:8080"
+
 # single mode: https://github.com/puma/puma/blob/master/docs/deployment.md#single-vs-cluster-mode
 workers 0
 
+threads 0, 16 # the default
+
 log_formatter do |msg|
   timestamp = Time.now.strftime("%Y-%m-%dT%H:%M:%S.%L%z")
   {