Add DMARC configuration for domain owner August

domains/_dmarc.august.json

@@ -0,0 +1,9 @@
+{
+  "owner": {
+    "username": "zoyxf",
+    "email": "mr.august.im@gmail.com"
+  },
+  "records": {
+    "TXT": "v=DMARC1; p=quarantine; rua=mailto:august@august.is-a.dev; ruf=mailto:august@august.is-a.dev; sp=none; adkim=r; aspf=r; pct=100"
+  }
+}