Merge pull request #44684 from jenweber/patch-1

[DOC] Introduce concerns example in Getting Started [ci-skip]

(cherry picked from commit da91d1c)

guides/source/getting_started.md

@@ -1703,7 +1703,9 @@ app/controllers/concerns
 app/models/concerns
 ```
 
-A given blog article might have various statuses - for instance, it might be visible to everyone (i.e. `public`), or only visible to the author (i.e. `private`). It may also be hidden to all but still retrievable (i.e. `archived`). Comments may similarly be hidden or visible. This could be represented using a `status` column in each model.
+In the example below, we will implement a new feature for our blog that would benefit from using a concern. Then, we will create a concern, and refactor the code to use it, making the code more DRY and maintainable.
+
+A blog article might have various statuses - for instance, it might be visible to everyone (i.e. `public`), or only visible to the author (i.e. `private`). It may also be hidden to all but still retrievable (i.e. `archived`). Comments may similarly be hidden or visible. This could be represented using a `status` column in each model.
 
 First, let's run the following migrations to add `status` to `Articles` and `Comments`: