Update limits-and-config.md

Adding a link official documentation on how per app passes are allocated by an admin.

Author: alaug

powerapps-docs/maker/canvas-apps/limits-and-config.md

@@ -111,7 +111,7 @@ You can find information about size limits on text, hyperlinks, images, and medi
 
 PowerApps per app plan allows individual users to run 2 applications on a single portal for a specific business scenario based on the full capabilities of PowerApps. This plan provides an easy way for users to get started with the platform before broader scale adoption.
 
-After an admin allocates PowerApps per app plan to an environment, they're assigned to users by default when app is shared with them.
+After an admin allocates PowerApps per app plan to an environment, they're assigned to users by default when app is shared with them. You can see how an admin allocates per app plans [here](https://docs.microsoft.com/en-us/power-platform/admin/capacity-add-on).
 
 Follow these steps to turn off the assigning per app plans for users when an app is shared with them: