add event h-tags

layouts/partials/calendar_card.html

@@ -1,5 +1,5 @@
     <div class='card calendar'>
-          <article class="h-entry calendar">
+          <article class="h-event calendar">
             <header>
               <h2 class="p-name"><a href="{{ .Permalink }}" class="u-url">{{ .Title }}</a></h2>
             </header>
@@ -15,9 +15,9 @@
               <div class='calendar-duration'>Duration: <b>{{ .Params.duration }}</b></div>
               <input class='descr_button' type='checkbox' id='toggle-{{ .Params.uid }}'/>
               <label class='calendar' for='toggle-{{ .Params.uid }}'>↕</label>
-              <div class='calendar-location'>{{ .Params.location | markdownify }}</div>
+              <div class='calendar-location p-location'>{{ .Params.location | markdownify }}</div>
  
-              <div class='calendar description' id='event-{{ .Params.uid }}'>
+              <div class='calendar description p-description' id='event-{{ .Params.uid }}'>
                 {{.Content}}
               </div>
             </div>