Add @agardnerIT (#62)

Author: agardnerIT

people.json

@@ -755,6 +755,24 @@
                 "Backend",
                 "Distributed System"
             ]
+        },
+        {
+            "name": "Adam Gardner",
+            "title": "DevRel",
+            "company": "Dynatrace",
+            "languages": ["English"],
+            "linkedin": "https://www.linkedin.com/in/agardner1/",
+            "scheduling": "https://calendly.com/agardnerit/30min",
+            "website": "https://agardner.net",
+            "mastodon": "https://techhub.social/@agardnerit",
+            "topics": [
+                "Observability",
+                "Feature flagging",
+                "CNCF",
+                "Open source",
+                "SCUBA Diving",
+                "Teach me something new"
+            ]
         }
     ]
 }