Update portfolio CNAME and add repository link

domains/pragati.json

@@ -1,11 +1,12 @@
 {
   "description": "Personal developer portfolio",
+  "repo": "https://github.com/deep-tinker/portfolio",
   "owner": {
     "username": "deep-tinker",
     "email": "pragatiranjan25@gmail.com"
   },
   "records": {
-    "CNAME": "pi5.tail4ee25c.ts.net"
+    "CNAME": "deep-tinker.github.io"
   },
   "proxied": false
 }