Update README.md

Author: robertagora

reference/built-in-actors/README.md

@@ -107,7 +107,7 @@ The `StoragePowerActor` is responsible for keeping track of the storage power al
 
 ### VerifiedRegistryActor
 
-The `VerifiedRegistryActor` is responsible for managing Filecoin Plus (Fil+) clients. This actor can add a verified client to the Fil+ program, remove and reclaim expired DataCap allocations and manage claims. This actor does not interact directly with the FVM.
+The `VerifiedRegistryActor` is responsible for managing Filecoin Plus clients. This actor can add a verified client to the Fil+ program, remove and reclaim expired DataCap allocations and manage claims. This actor does not interact directly with the FVM.
 
 ### SystemActor