Add instructions to Reserve and Deposit cli commands

[Titan-Node]

Currently new gateway operators get confused with Reserve and Deposit terminology when funding their gateway.

I suggest we add a description once they have selected the option in the Cli.

Something like:

Reserve: This holding account does not spend any funds. It ensures Orchestrators get paid if funds run out. To start, add 100x the ticket value (e.g. with a ticket value of 0.0012 ETH, add reserve of 0.12 ETH).

Deposit: This spending account pays Orchestrators for completed work. Regularly add funds to keep services running. Start with 2x your deposit amount and increase as needed based on demand.

Note: You can withdraw both reserve and deposit amounts via the CLI.

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As for the Reserve calculation, I may need some help in finding the correct calculation, but I think there needs to be concrete guidance on how much to fund.