Update README.md

Author: leohhhn

README.md

@@ -32,12 +32,13 @@ options for the faucet (in GNOT), the faucet URL, and the recaptcha site key.
 
 ```json
 {
-  "name": "Gno Portal Loop",
-  "chain_id": "portal-loop",
-  "amounts": [1, 5, 10],
-  "url": "https://faucet-api.portal.gnoteam.com",
-  "recaptcha": "6Ldp0pgpAAAAANZxTw4oy4XkOKhhkmpDl8Yoq6uw"
-}
+    "name": "Gno Portal Loop",
+    "chain_id": "portal-loop",
+    "amounts": [1, 5, 10],
+    "url": "https://faucet-api.gno.land",
+    "description": "A nightly staging testnet used for experimenting with the latest versions of Gno, Gno.land, and TM2.",
+    "recaptcha": "6Ldp0pgpAAAAANZxTw4oy4XkOKhhkmpDl8Yoq6uw"
+  }
 ```
 
 You can find an example PR [here](https://github.com/gnolang/faucet-hub/pull/16).