[EDU-2046] - Migrate Realtime SDK API spec Push Admin page to MDX#2915

GregHolmes merged 1 commit intomainably/docs:mainfrom

EDU-2046-Convert-Pub-Sub-API-push-admin-refs-to-MDXably/docs:EDU-2046-Convert-Pub-Sub-API-push-admin-refs-to-MDXCopy head branch name to clipboard