Merge pull request #24487 from tomkadwill/action-mailer-base-docs

Update ActionMailer Mailer Models and Views documentation [ci skip]

actionmailer/lib/action_mailer/base.rb

@@ -86,7 +86,7 @@ module ActionMailer
   # Like Action Controller, each mailer class has a corresponding view directory in which each
   # method of the class looks for a template with its name.
   #
-  # To define a template to be used with a mailing, create an <tt>.erb</tt> file with the same
+  # To define a template to be used with a mailer, create an <tt>.erb</tt> file with the same
   # name as the method in your mailer model. For example, in the mailer defined above, the template at
   # <tt>app/views/notifier_mailer/welcome.text.erb</tt> would be used to generate the email.
   #