add blurb explaining what data is shared with the world

src/App.vue

@@ -1,7 +1,7 @@
 <template>
   <router-view />
 
-  <!-- https://github.com/emmanuelsw/notiwind -->
+  <!-- Messages in the upper-right - https://github.com/emmanuelsw/notiwind -->
   <NotificationGroup group="alert">
     <div
       class="fixed top-4 right-4 w-full max-w-sm flex flex-col items-start justify-end"
@@ -129,6 +129,7 @@
     </div>
   </NotificationGroup>
 
+  <!-- These are general-purpose messages - except there are some for turning app notifications on and off. -->
   <NotificationGroup group="modal">
     <div class="fixed z-[100] top-0 inset-x-0 w-full">
       <Notification
@@ -148,6 +149,7 @@
           class="w-full"
           role="alert"
         >
+          <!-- type "confirm" will post a message and, with onYes function, show a "Yes" button to call that function -->
           <div
             v-if="notification.type === 'confirm'"
             class="absolute inset-0 h-screen flex flex-col items-center justify-center bg-slate-900/50"
@@ -161,6 +163,7 @@
                 </p>
 
                 <button
+                  v-if="notification.onYes"
                   @click="
                     notification.onYes();
                     close(notification.id);
@@ -174,7 +177,7 @@
                   @click="close(notification.id)"
                   class="block w-full text-center text-md font-bold uppercase bg-slate-600 text-white px-2 py-2 rounded-md"
                 >
-                  Cancel
+                  {{ notification.onYes ? "Cancel" : "Close" }}
                 </button>
               </div>
             </div>