meteor__microscope/client/templates/notifications/notifications.html

<template name="notifications">
  <a href="#" class="dropdown-toggle" data-toggle="dropdown">
    Notifications
    {{#if notificationCount }}
      <span class="badge badge-inverse">{{ notificationCount }}</span>
    {{/if}}
    <b class="caret"></b>
  </a>
  <ul class="notification dropdown-menu">
    {{#if notificationCount }}
      {{#each notifications}}
        {{> notificationItem }}
      {{/each}}
    {{else}}
      <li><span>No Notifications</span></li>
    {{/if}}
  </ul>
</template>

<template name="notificationItem">
  <li>
    <a href="{{ notificationPostPath }}">
      <strong>{{ commenterName }}</strong> commented on your post
    </a>
  </li>
</template>