case-sensitive -> case-insensitive (#52)

I assume that it should be 'case-insensitive'.

Author: ErikMogensen

changelogs/api-management-service.md

@@ -33,7 +33,7 @@
 - Exporting APIs with empty or whitespace-only examples no longer produces an error.
 - Optional string query parameters are no longer added to the API operation's URL template.
 -`$DevPortalUrl` variable in the developer welcome email template now returns a new developer portal URL. Previously, it returned a legacy developer portal URL.
-- The [`authenticate-certificate`](https://learn.microsoft.com/azure/api-management/authentication-certificate-policy) policy now performs a case-sensitive certificate ID validation. Previously, request processing would fail when the casing between the certificate ID in the policy and in the request didn’t match.
+- The [`authenticate-certificate`](https://learn.microsoft.com/azure/api-management/authentication-certificate-policy) policy now performs a case-insensitive certificate ID validation. Previously, request processing would fail when the casing between the certificate ID in the policy and in the request didn’t match.
 - We've fixed an issue preventing recovery of the [soft-deleted](https://learn.microsoft.com/azure/api-management/soft-delete#recover-a-soft-deleted-instance) Basic v2 and Standard v2 service instances.
 
 ### Self-hosted developer portal releases