Revise Journeys section and link to V2 limits

Updated the section header for Journeys and added a reference to Journeys V2 limits.

Author: maxmilhan

src/engage/product-limits.md

@@ -46,7 +46,7 @@ To learn more about custom limits and upgrades, contact your dedicated Customer
 | SQL Traits - Columns        | 25                         | The number of columns each SQL trait can return.                                                             |
 
 
-## Journeys
+## Journeys V1
 
 | Item            | Limit description                                       | Details                                                                      |
 | --------------- | ------------------------------------------------------- | ---------------------------------------------------------------------------- |
@@ -56,7 +56,7 @@ To learn more about custom limits and upgrades, contact your dedicated Customer
 | Journey Name    | Maximum length of 73 characters                         | Once the limit is reached, you cannot add additional characters to the name. |
 | Compute credits | Half a credit for each step (up to 250 compute credits) | Each step in a published Journey consumes half of one compute credit.        |
 
-
+For Journeys V2, see [Product Limits](https://segment.com/docs/engage/journeys/v2/limits/) here.
 
 ## Channels