fix(simonemms): update coffee url (#95)

Author: mrsimonemms

people.json

@@ -11,7 +11,7 @@
             "linkedin": "https://www.linkedin.com/in/simonemms",
             "twitter": "https://twitter.com/mrsimonemms",
             "github": "https://github.com/mrsimonemms",
-            "scheduling": "https://calendly.com/simon-emms/coffee-chat",
+            "scheduling": "https://coffee.simonemms.com",
             "online-only": false,
             "topics": [
                 "Engineering (software)",