[feature request] add auto sell

[geeks121]

Great project ,, and thank you for making this project opensource.
how to add auto sell feature? in percentage profit ,, example 2x for 100%
i also see the posibilites to use bot for buying token with giving contract using private channel.
and the command is like this :
buy busd 100
^ buying 100 busd with bnb balance ... this should be work ,, because your bot listening to spesific keyword ,,

or :
buy [contract address] 0.002 --bnb