Updating dibster.is-a.dev

1. Changed description.
2. Adding Twitter handle.
3. Adding MX mail server records.

domains/dibster.json

@@ -1,13 +1,14 @@
 {
-  "description": "ShareX Server/Protfolio Site",
+  "description": "ShareX Server/Protfolio Site. Under @DIBSTERYT on GitHub.",
   "repo": "https://github.com/DIBSTERYT",
   "owner": {
     "username": "DIBSTERYT",
-    "email": "contact@dibster.ml"
+    "email": "contact@dibster.ml",
+    "twitter": "DEV_DIBSTER"
   },
   "record": {
-      "A": [
-      "164.132.74.251"
-    ]
+      "A": ["164.132.74.251"],
+      "MX": ["mx1.improvmx.com", "mx2.improvmx.com"],
+      "TXT": "v=spf1 include:spf.improvmx.com ~all"
   }
 }