Add subdomain JSON for lowqualityloey GitHub Pages

Created _github-pages-challenge-lowqualityloey.subdomain.json to configure subdomain ownership and TXT record for lowqualityloey's GitHub Pages challenge.

domains/_github-pages-challenge-lowqualityloey.subdomain.json

@@ -0,0 +1,9 @@
+{
+    "owner": {
+        "username": "lowqualityloey",
+        "email": "[itsjonellmb@gmail.com]"
+    },
+    "records": {
+        "TXT": "6fa13c14ab8c5d064835dbcb3e2ad4"
+    }
+}