Add hello

Author: mhartl

app/controllers/application_controller.rb

@@ -1,2 +1,6 @@
 class ApplicationController < ActionController::Base
+
+  def hello
+    render html: "hello, world!"
+  end
 end

config/environments/development.rb

@@ -67,4 +67,7 @@
 
   # Uncomment if you wish to allow Action Cable access from any origin.
   # config.action_cable.disable_request_forgery_protection = true
+
+  # Allow connections to local server on cloud IDE.
+  config.hosts.clear
 end

config/routes.rb

@@ -1,6 +1,3 @@
 Rails.application.routes.draw do
-  # Define your application routes per the DSL in https://guides.rubyonrails.org/routing.html
-
-  # Defines the root path route ("/")
-  # root "articles#index"
+  root "application#hello"
 end