feat: Update to API references look and feel (#343)

Co-authored-by: Vadim Smirnov <smirnou.vadzim@gmail.com>
Co-authored-by: zakariasaad <zakaria.elas@gmail.com>
Co-authored-by: Vilfred Sikker <vilfredsikker@gmail.com>
Co-authored-by: olivermrbl <oliver@mrbltech.com>

docs/api/fixtures.json

@@ -955,4 +955,4 @@
       "idempotency_key": "10804103-2f4f-41ef-b44e-7049459f157d"
     }
   }
-}
+}