Clarify GHES Git push/object size limit docs (#62970)

Co-authored-by: Copilot <copilot@github.com>

Author: kyanny

content/admin/enforcing-policies/enforcing-policies-for-your-enterprise/enforcing-repository-management-policies-in-your-enterprise.md

@@ -209,7 +209,7 @@ By default, repository administrators can rename branches that are targeted by e
 
 To keep your repository size manageable and prevent performance issues, you can configure a file size limit for repositories in your enterprise.
 
-By default, when you enforce repository upload limits, people cannot add or update files larger than 100 MB.
+By default, people cannot add or update files larger than 100 MB, but you can raise or remove this limit. If you enforce your chosen limit for all repositories on the instance, individual repositories cannot use a different limit.
 
 {% data reusables.enterprise-accounts.access-enterprise %}
 {% data reusables.enterprise-accounts.policies-tab %}

content/repositories/creating-and-managing-repositories/repository-limits.md

@@ -45,7 +45,7 @@ To avoid throttling and performance issues, we recommend staying within the foll
 * **Push size**: This limit is enforced at 2GB.
 * **Single object size**:
 
-  The recommended maximum limit is 1MB. This is enforced at 100MB. To track large files in a Git repository, we recommend using {% data variables.large_files.product_name_short %}. See [AUTOTITLE](/repositories/working-with-files/managing-large-files/about-git-large-file-storage).
+  The recommended maximum limit is 1MB. {% ifversion ghes %}By default, this is enforced at 100 MB, but enterprise owners can change or remove this limit. See [AUTOTITLE](/admin/enforcing-policies/enforcing-policies-for-your-enterprise/enforcing-repository-management-policies-in-your-enterprise#enforcing-a-policy-for-git-push-limits).{% else %}This is enforced at 100 MB.{% endif %} To track large files in a Git repository, we recommend using {% data variables.large_files.product_name_short %}. See [AUTOTITLE](/repositories/working-with-files/managing-large-files/about-git-large-file-storage).
 
 * **Git read operations (e.g. fetches, clones)**: