docs: updates Example, Use auctocli (backport #23088) (#23113)

Co-authored-by: DongLieu <93205232+DongLieu@users.noreply.github.com>

x/distribution/autocli.go

@@ -63,7 +63,7 @@ func (am AppModule) AutoCLIOptions() *autocliv1.ModuleOptions {
 					RpcMethod: "DelegationRewards",
 					Use:       "rewards-by-validator <delegator-addr> <validator-addr>",
 					Short:     "Query all distribution delegator from a particular validator",
-					Example:   fmt.Sprintf("$ %s query distribution rewards [delegator-address] [validator-address]", version.AppName),
+					Example:   fmt.Sprintf("$ %s query distribution rewards-by-validator [delegator-address] [validator-address]", version.AppName),
 					PositionalArgs: []*autocliv1.PositionalArgDescriptor{
 						{ProtoField: "delegator_address"},
 						{ProtoField: "validator_address"},

x/staking/autocli.go

@@ -17,6 +17,7 @@ func (am AppModule) AutoCLIOptions() *autocliv1.ModuleOptions {
 			RpcCommandOptions: []*autocliv1.RpcCommandOptions{
 				{
 					RpcMethod: "Validators",
+					Use:       "validators",
 					Short:     "Query for all validators",
 					Long:      "Query details about all validators on a network.",
 				},