Add proton mail sigining key to apex domain

domains/clove.json

@@ -4,6 +4,7 @@
         "email": "admin@doughmination.win"
     },
     "records": {
-        "CNAME": "doughmination.github.io"
+        "CNAME": "doughmination.github.io",
+        "TXT": "protonmail-verification=0ea3e2b7040224635c84f1baa30c72b1a2770606"
     }
 }