Replaced with double quote

app/views/static_pages/home.html.erb

@@ -10,5 +10,4 @@
   <%= link_to "Sign up now!", signup_path, class: "btn btn-lg btn-primary" %>
   <%= link_to "Sign up now!", signup_path, class: "btn btn-lg btn-primary" %>
 </div>
 </div>
 
 
-<%= link_to image_tag("rails.png", alt: "Rails logo"),
-            'http://rubyonrails.org/' %>
+<%= link_to image_tag("rails.png", alt: "Rails logo"),"http://rubyonrails.org/" %>

config/application.rb

-require_relative 'boot'
+require_relative "boot"
 
 
-require 'rails/all'
+require "rails/all"
 
 
 # Require the gems listed in Gemfile, including any gems
 # Require the gems listed in Gemfile, including any gems
-# you've limited to :test, :development, or :production.
+# you"ve limited to :test, :development, or :production.
 Bundler.require(*Rails.groups)
 Bundler.require(*Rails.groups)
 
 
 module SampleApp
 module SampleApp

config/boot.rb

-ENV['BUNDLE_GEMFILE'] ||= File.expand_path('../Gemfile', __dir__)
+ENV["BUNDLE_GEMFILE"] ||= File.expand_path("../Gemfile", __dir__)
 
 
-require 'bundler/setup' # Set up gems listed in the Gemfile.
+require "bundler/setup" # Set up gems listed in the Gemfile.