Fix markdown lint errors in billing and education documentation (#55911)

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: felicitymay <1877141+felicitymay@users.noreply.github.com>
Co-authored-by: Felicity Chapman <felicitymay@github.com>

Author: Copilot

content/billing/managing-billing-for-your-products/managing-billing-for-github-advanced-security/migrating-from-ghas-to-cs-and-sp.md

@@ -18,13 +18,11 @@ shortTitle: Migrating to new GHAS SKUs
 
 ## New SKUs for {% data variables.product.prodname_AS %} features
 
-<!-- expires 2025-05-31 -->
+<!-- expires 2025-09-30 -->
 
-<!-- On expiry, check with the stakeholder. If nothing else, remove the date from the start of this paragraph and check the information for Metered-billing users is still appropriate. Possibly the whole article can be deleted. Reference: release 5202 -->
+{% data variables.product.prodname_AS %} features are also available under two separate stock keeping units (SKUs) for {% data variables.product.prodname_team %} and {% data variables.product.prodname_ghe_cloud %} users. {% data variables.product.prodname_ghe_server %} users can use the two new SKUs when upgrading to version 3.17.
 
-From April 1, 2025, {% data variables.product.prodname_AS %} features are also available under two separate stock keeping units (SKUs) for {% data variables.product.prodname_team %} and {% data variables.product.prodname_ghe_cloud %} users. {% data variables.product.prodname_ghe_server %} users can use the two new SKUs when upgrading to version 3.17.
-
-<!-- end expires 2025-05-31 -->
+<!-- end expires 2025-09-30 -->
 
 {% data reusables.advanced-security.ghas-products-bullets %}
 

content/education/manage-coursework-with-github-classroom/teach-with-github-classroom/connect-a-learning-management-system-course-to-a-classroom.md

@@ -42,7 +42,7 @@ An administrator needs to register your LMS instance with classroom before you c
 1. Select the Blackboard course or organization to integrate with {% data variables.product.prodname_classroom %}.
 1. In the right sidebar on the course page, click **Books & Tools**, then click **GitHub Classroom**. Note that the name may be different if your LMS administrator named it something else when registering your LMS.
 1. Click **{% data variables.product.prodname_classroom %}**.
-1. In {% data variables.product.prodname_classroom %}, select a classroom to link with your LMS course. 
+1. In {% data variables.product.prodname_classroom %}, select a classroom to link with your LMS course.
 
     > [!NOTE] This step might give you an error message, "Unable to launch link. The Tool Provider has been disabled by the System Administrator: {% data variables.product.prodname_classroom %}". To resolve this error, ensure that the status of the “{% data variables.product.prodname_classroom %}” tool is set to `Approved`. In the "Admin Panel," click **LTI Tool Providers**. Hover on the name next to {% data variables.product.prodname_classroom %} and click **Approve**.
 

content/education/manage-coursework-with-github-classroom/teach-with-github-classroom/register-a-learning-management-system-with-github-classroom.md

@@ -68,8 +68,8 @@ You can register your Blackboard installation with {% data variables.product.pro
     1. Verify that **Tool Status** is `Approved`.
     1. Verify that **User Fields to be Sent** flags are enabled for "Role in Course", "Name", "Email Address".
     1. Verify that **Allow mark service access** radio button is set to "No". To enable this option, navigate to the LTI Tool Providers in the Admin Panel:
-       - Select Manage Global Properties
-       - Under Creation of Tool Provider Links, select radio button “Allow links to any tool provider, but require approval for each new provider”
+       * Select Manage Global Properties
+       * Under Creation of Tool Provider Links, select radio button “Allow links to any tool provider, but require approval for each new provider”
     1. Verify that **Allow Membership Service Access** radio button is set to "Yes".
 1. Click **Submit**.