Merge pull request #21899 from scottgonzalez/layouts-and-rendering-typo

Fix typo in docs

guides/source/layouts_and_rendering.md

@@ -280,7 +280,7 @@ render body: "raw"
 ```
 
 TIP: This option should be used only if you don't care about the content type of
-the response. Using `:plain` or `:html` might be more appropriate in most of the
+the response. Using `:plain` or `:html` might be more appropriate most of the
 time.
 
 NOTE: Unless overridden, your response returned from this render option will be