Corrects the number of schedules on Free tier (#1768)

Author: samejr

docs/limits.mdx

@@ -39,7 +39,7 @@ The number of queued tasks by environment.
 
 | Pricing tier | Limit              |
 | :----------- | :----------------- |
-| Free         | 5 per project      |
+| Free         | 10 per project      |
 | Hobby        | 100 per project    |
 | Pro          | 1,000+ per project |