Merge pull-request #467

Author: zkharit

concepts/policies/language.mdx

@@ -295,6 +295,11 @@ Our Tron policy language (accessible via `tron.tx`) allows for policy control ov
 
 - TransferContract (TRX transfers)
 - TriggerSmartContract (Smart contract, including, but not limited to TRC-20, invocations)
+- DelegateResourceContract
+- UnDelegateResourceContract
+- FreezeBalanceV2Contract
+- UnfreezeBalanceV2Contract
+- AccountPermissionUpdateContract
 
 See the [Tron policy examples](/concepts/policies/examples/tron) for sample scenarios.