Use tables again for talks

source/_talks/test-drive-twig-with-sculpin.md

@@ -1,13 +1,15 @@
 ---
 title: Test Drive Twig with Sculpin
-slides:
+speakerdeck:
+    id: 54589d2e50a3476a9a75aed809e9edf1
+    ratio: '1.77777777777778'
     url: https://speakerdeck.com/opdavies/test-drive-twig-with-sculpin
-    embed: <script async class="speakerdeck-embed" data-id="54589d2e50a3476a9a75aed809e9edf1" data-ratio="1.77777777777778" src="//speakerdeck.com/assets/embed.js"></script>
 code: https://github.com/opdavies/sculpin-demo
 tags: [conference, drupalcamp, drupalcamp-north, sculpin, twig]
 tweets: yes
 events:
-    - { event: drupalcamp-north-15, date: '2015-07-25' }
+    - event: drupalcamp-north-15
+      date: '2015-07-25'
 ---
 [Sculpin][1] is a static site generator written in PHP, and based on [Symfony components][2]. It uses [YAML][3] and [Twig][4], which makes it very appealing to Drupal people wanting to learn these in preparation for Drupal 8.