Fix talk ordering

source/_talks/working-with-workspace.md

@@ -12,16 +12,16 @@ events:
   - name: NWDUG
     location: Manchester, UK
     url: https://www.meetup.com/nwdrupal/events/272098270
-    date: "2020-08-11"
+    date: 2020-08-11
     online: true
   - name: PHP South West
     location: Bristol, UK
     url: https://www.meetup.com/php-sw/events/272787346
-    date: "2020-09-09"
+    date: 2020-09-09
     online: true
   - name: PHP North West
     url: https://www.phpnw.org.uk
-    date: "2021-02-02"
+    date: 2021-02-02
     online: true
 ---