Docs: use concrete checks and radios aria labels

Author: Kevinjohn

site/src/content/docs/forms/checks-radios.mdx

@@ -221,11 +221,11 @@ Put your checkboxes, radios, and switches on the opposite side with the `.form-c
 Omit the wrapping `.form-check` for checkboxes and radios that have no label text. Remember to still provide some form of accessible name for assistive technologies (for instance, using `aria-label`). See the [forms overview accessibility]([[docsref:/forms/overview/#accessibility]]) section for details.
 
 <Example code={`<div>
-    <input class="form-check-input" type="checkbox" id="checkboxNoLabel" value="" aria-label="...">
+    <input class="form-check-input" type="checkbox" id="checkboxNoLabel" value="" aria-label="Checkbox without label">
   </div>
 
   <div>
-    <input class="form-check-input" type="radio" name="radioNoLabel" id="radioNoLabel1" value="" aria-label="...">
+    <input class="form-check-input" type="radio" name="radioNoLabel" id="radioNoLabel1" value="" aria-label="Radio button without label">
   </div>`} />
 
 ## Toggle buttons