Document new Limits page in dashboard (#2908)

Added documentation for the new Limits page feature that allows users to
view their current limits, quotas, and rate limit usage in real-time
from the dashboard. The page displays rate limit token availability,
quota usage, and plan features for organizations.

## Files changed
- `docs/limits.mdx` - Added introductory paragraph about the new Limits
page in the dashboard

Generated from [feat(webapp): New limits
page](#2885) @samejr

Co-authored-by: mintlify[bot] <109931778+mintlify[bot]@users.noreply.github.com>
Co-authored-by: James Ritchie <james@trigger.dev>

Author: mintlify[bot]

docs/limits.mdx

@@ -5,6 +5,8 @@ description: "There are some hard and soft limits that you might hit."
 
 import RateLimitHitUseBatchTrigger from "/snippets/rate-limit-hit-use-batchtrigger.mdx";
 
+You can view your current limits, quotas, and rate limit usage in real-time by visiting the **Limits** page in the dashboard (accessible from the left sidebar). This page shows current rate limit token availability, quota usage, and plan features for your organization.
+
 ## Concurrency limits
 
 | Pricing tier | Limit                |