Update talk content

source/_talks/drupalorg-2015.md

@@ -7,10 +7,14 @@ speakerdeck:
   ratio: '1.77777777777778'
   url: https://speakerdeck.com/opdavies/drupal-dot-org-in-15
 events:
-  - event: drupalcamp_brighton_15
+  - name: DrupalCamp Brighton
+    location: Brighton, UK
     date: 2015-01-18
-  - event: drupalcamp_london_15
+
+  - name: DrupalCamp London 2015
+    location: London, UK
     date: 2015-02-28
+sortable_date: 2015-02-28
 ---
 
 A retrospective of the Drupal Association’s work in 2014 and a look forward to what we’ll be working on in 2015.