Create JeielMiranda.json

Following the documentation...

domains/JeielMiranda.json

@@ -0,0 +1,11 @@
+{
+    "description": "Personal subdomain",
+    "repo": "https://github.com/Jetrom17/jetrom17.github.io",
+    "owner": {
+        "username": "Jetrom17",
+        "email": "72875404+Jetrom17@users.noreply.github.com"
+    },
+    "record": {
+        "CNAME": "jetrom17.github.io"
+    }
+}