Update portfolio details in pushkarmishra.json

Updated email and added description and repo link.

domains/pushkarmishra.json

@@ -1,7 +1,9 @@
 {
+  "description": "Pushkar Mishra - Full Stack Developer Portfolio",
+  "repo": "https://github.com/pushkarmishra244-alt",
   "owner": {
     "username": "pushkarmishra244-alt",
-    "email": "your-email@example.com"
+    "email": "Pushkarmishra244@gmail.com"
   },
   "records": {
     "CNAME": "cname.vercel-dns.com"