Update api-reference.md (#64325)

minor code example correction. Removed duplicate HTML span element closing tags `>>` on lines 58 and 69
[wp-interactive API](<https://developer.wordpress.org/block-editor/reference-guides/interactivity-api/api-reference/#wp-interactive>)

Co-authored-by: djcowan <djcowan@git.wordpress.org>
Co-authored-by: tyxla <tyxla@git.wordpress.org>

docs/reference-guides/interactivity-api/api-reference.md

@@ -55,7 +55,7 @@ The `wp-interactive` directive "activates" the interactivity for the DOM element
   data-wp-interactive="myPlugin"
   data-wp-context='{ "myColor" : "red", "myBgColor": "yellow" }'
 >
-  <p>I'm interactive now, <span data-wp-style--background-color="context.myBgColor">>and I can use directives!</span></p>
+  <p>I'm interactive now, <span data-wp-style--background-color="context.myBgColor">and I can use directives!</span></p>
   <div>
     <p>I'm also interactive, <span data-wp-style--color="context.myColor">and I can also use directives!</span></p>
   </div>
@@ -66,7 +66,7 @@ The `wp-interactive` directive "activates" the interactivity for the DOM element
   data-wp-interactive='{ "namespace": "myPlugin" }'
   data-wp-context='{ "myColor" : "red", "myBgColor": "yellow" }'
 >
-  <p>I'm interactive now, <span data-wp-style--background-color="context.myBgColor">>and I can use directives!</span></p>
+  <p>I'm interactive now, <span data-wp-style--background-color="context.myBgColor">and I can use directives!</span></p>
   <div>
     <p>I'm also interactive, <span data-wp-style--color="context.myColor">and I can also use directives!</span></p>
   </div>