fix top-up code render

docs/home/home.rst

@@ -27,8 +27,10 @@ Welcome Gift
 Before diving in, you may have received a code to increase your credits. If that's the case, you can activate it with a simple request to this endpoint once you've grabbed your API key from the console:
 
 .. code-block:: bash
-    curl -X POST "https://api.unify.ai/v0/promo?code=<CODE>" \
-        -H "accept: application/json" \
-        -H "Authorization: Bearer <YOUR_UNIFY_KEY>"
 
-Simply replace :code:`<CODE>`` with your top up code and :code:`<YOUR_UNIFY_KEY>`` with your API Key in the request, and you're ready to take-off with extra credits! 🚀
+    curl -X 'POST' \
+    'https://api.unify.ai/v0/promo?code=<CODE>' \
+    -H 'accept: application/json' \
+    -H 'Authorization: Bearer <YOUR_UNIFY_KEY>'
+
+Simply replace :code:`<CODE>` with your top up code and :code:`<YOUR_UNIFY_KEY>` with your API Key in the request, and you're ready to take-off with extra credits! 🚀