chore: update roadmap content json (#8050)

Co-authored-by: kamranahmedse <4921183+kamranahmedse@users.noreply.github.com>

public/roadmap-content/vue.json

@@ -374,6 +374,11 @@
     "title": "v-on",
     "description": "The v-on directive is placed on an element to attach an event listener. To attach an event listener with v-on we need to provide the event type, and any modifier, and a method or expression that should run when that event occurs.\n\nVisit the following resources to learn more:",
     "links": [
+      {
+        "title": "v-on Documentation",
+        "url": "https://vuejs.org/api/built-in-directives.html#v-on",
+        "type": "article"
+      },
       {
         "title": "v-on Directive",
         "url": "https://www.w3schools.com/vue/ref_v-on.php",