Docs update batch limits to 5MB

Author: matt-aitken

docs/limits.mdx

@@ -54,7 +54,7 @@ If you're creating schedules for your user you will definitely need to request m
 | Limit                  | Details                                       |
 | :--------------------- | :-------------------------------------------- |
 | Single trigger payload | Must not exceed 3MB                           |
-| Batch trigger payload  | The total of all payloads must not exceed 1MB |
+| Batch trigger payload  | The total of all payloads must not exceed 5MB |
 | Task outputs           | Must not exceed 10MB                          |
 
 Payloads and outputs that exceed 512KB will be offloaded to object storage and a presigned URL will be provided to download the data when calling `runs.retrieve`. You don't need to do anything to handle this in your tasks however, as we will transparently upload/download these during operation.