fix: twitter handle.

Author: hansl

harp.json

@@ -188,7 +188,7 @@
       "hansl": {
         "name": "Hans Larsen",
         "picture": "/resources/images/bios/hansl.jpg",
-        "twitter": "hanselatwork",
+        "twitter": "hanslatwork",
         "website": "http://www.codingatwork.com/",
         "bio": "Hans is a software engineer at Google on the Angular team and was previously at Slack. He works everyday to help make it easier for everyone to create beautiful, consistent web applications using Angular2, using Material Design components and the CLI tool.",
         "type": "Google"