Update setup-file.mdx

Author: ballesterdev

docs/pages/learning/setup-file.mdx

@@ -241,6 +241,7 @@ Available services:
 | `em:sputnik:histogram` | `https://openair-dev.airtrfx.com/airfare-sputnik-service/v3/%%tenantCode%%/fares/histogram`    |     |
 | `em:sputnik:histogram-distribution` | `https://openair-dev.airtrfx.com/airfare-sputnik-service/v3/%%tenantCode%%/fares/histogram-distribution` |     |
 | `em:sputnik:popular-destinations` | `https://openair-dev.airtrfx.com/airfare-sputnik-service/v3/%%tenantCode%%/fares/popular-destinations`    |     |
+| `em:sputnik:trending-destinations` | `https://openair-dev.airtrfx.com/airfare-sputnik-service/v3/%%tenantCode%%/fares/trending-destinations`    |     |
 | `em:sputnik:cash-redemption` | `https://openair-dev.airtrfx.com/airfare-sputnik-service/v3/%%tenantCode%%/fares/cash-redemption`    |     |
 | `em:sputnik:travel-classes` | `https://openair-dev.airtrfx.com/airfare-sputnik-service/v3/%%tenantCode%%/fares/travel-classes`    |     |
 | `em:hangar:search`  | `https://openair-dev.airtrfx.com/hangar-service/v2/%%tenantCode%%/airports/search`    |     |