Merge branch 'patch-96' into 'master'

Add link with additional CI minutes pricing

See merge request gitlab-org/gitlab!29065

doc/subscriptions/index.md

@@ -448,7 +448,7 @@ of the group/namespace. You can [purchase additional CI minutes](#purchasing-add
 
 If you're using GitLab.com, you can purchase additional CI minutes so your
 pipelines won't be blocked after you have used all your CI minutes from your
-main quota. Additional minutes:
+main quota. You can find pricing for additional CI/CD minutes in the [GitLab Customers Portal](https://customers.gitlab.com/plans). Additional minutes:
 
 - Are only used once the shared quota included in your subscription runs out.
 - Roll over month to month.