Fantoken transfer, change description

[angelorc]

Change the following description

Command: bitsongd tx fantoken transfer

From: bitsongd tx token transfer <symbol> --to=<to> --from=<key-name> --chain-id=<chain-id> --fees=<fee>

To: bitsongd tx fantoken transfer <symbol> --to=<to> --from=<key-name> --chain-id=<chain-id> --fees=<fee>