docs: change p to pointer for better understanding (angular#34927)

earlier p sigly was used to define a paragraph element which was not clear what we want to refer changed it to paragrapg element for better understanding

Fixes angular#34922

PR Close angular#34927

aio/content/guide/attribute-directives.md

@@ -173,7 +173,7 @@ Here's the updated directive in full:
 <code-example path="attribute-directives/src/app/highlight.directive.2.ts" header="src/app/highlight.directive.ts"></code-example>
 
 Run the app and confirm that the background color appears when
-the mouse hovers over the `p` and disappears as it moves out.
+the pointer hovers over the paragraph element and disappears as the pointer moves out.
 
 <div class="lightbox">
   <img src="generated/images/guide/attribute-directives/highlight-directive-anim.gif" alt="Second Highlight">