Merge pull request #288551 from sfiguemsft/resolver-restrictions

update on ruleset restrictions

Author: prmerger-automator[bot]

articles/dns/dns-private-resolver-overview.md

@@ -121,6 +121,7 @@ Outbound endpoints have the following limitations:
 ### Ruleset restrictions
 
 - Rulesets can have up to 1000 rules.
+- Cross-tenant linking of Rulesets is not supported.
 
 ### Other restrictions