update submit-consumer-misbehaviour cli description

x/ccv/provider/client/cli/tx.go

@@ -104,9 +104,17 @@ $ %s tx provider register-consumer-reward-denom untrn --from mykey
 
 func NewSubmitConsumerMisbehaviourCmd() *cobra.Command {
 	cmd := &cobra.Command{
-		Use:   "submit-consumer-misbehaviour [misbeaviour]",
-		Short: "submit a light client misbehaviour for a consumer chain",
-		Args:  cobra.ExactArgs(1),
+		Use:   "submit-consumer-misbehaviour [misbehaviour]",
+		Short: "submit a IBC misbehaviour for a consumer chain",
+		Long: strings.TrimSpace(
+			fmt.Sprintf(`Submit a IBC misbehaviour detected on a consumer chain.
+A IBC misbehaviour contains two conflicting IBC client headers, which are used to form a light client attack evidence.
+The misbehaviour type definition can be found in the IBC client messages, see ibc-go/proto/ibc/core/client/v1/tx.proto`.
+
+Examples:
+%s tx provider submit-consumer-misbehaviour [path/to/misbehaviour.json] --from node0 --home ../node0 --chain-id $CID
+			`, version.AppName)),
+		Args: cobra.ExactArgs(1),
 		RunE: func(cmd *cobra.Command, args []string) error {
 			clientCtx, err := client.GetClientTxContext(cmd)
 			if err != nil {