[EASY] Add cli to DOC

[wimble3]

We need to add to our documentation at README.md file examples how to start consumer or cron consumer in 2 places:

1. At quickstart block near to common broker.consumer.start_consume(). I think it should be right in example like:

# run via call
broker.consumer.start_consume(...)

# run via cli
...

2. At main documentation block below "Cron tasks" block. It should be new block "CLI" with list of all cli avaible commands

[wimble3]

@P-r-e-m-i-u-m Hey, brother, are you interested in? By the way, I'm working on powerful UI right now and I will need for help soon, do you want to be a maintainer of melony? I actually don't know how to do it on github, but i will find this xD

[P-r-e-m-i-u-m]

Hey @wimble3! I’m interested in the CLI docs issue. Also, congrats on the maintainer role. Happy to help and looking forward to the UI work 🙌

[wimble3]

Hey @wimble3! I’m interested in the CLI docs issue. Also, congrats on the maintainer role. Happy to help and looking forward to the UI work 🙌

@P-r-e-m-i-u-m good news! Thank you =)

[P-r-e-m-i-u-m]

all set broo