Update CNAME URL format in mitul.json

Added a trailing slash to the CNAME URL.

domains/mitul.json

@@ -1,9 +1,9 @@
 {
     "owner": {
-        "username": "mitulupadhyay"
+        "username": "mitulupadhyay",
         "email": "mitulupadhyay0910@gmail.com"
     },
     "records": {
-        "CNAME": "https://mitulupadhyay.github.io"
+        "CNAME": "https://mitulupadhyay.github.io/"
     }
 }