Merge pull request #37842 from tkusuki/fix-typo-in-options-for-render

Fix typo in "Options for render" section [ci skip]

guides/source/layouts_and_rendering.md

@@ -279,7 +279,7 @@ TIP: `send_file` is often a faster and better option if a layout isn't required.
 
 #### Options for `render`
 
-Calls to the `render` method generally accept five options:
+Calls to the `render` method generally accept six options:
 
 * `:content_type`
 * `:layout`