adds ploomber cloud to deployment tutorials

[edublancas]

as discussed today, I've added ploomber cloud as a deployment option.

@willydouhard: you mentioned you want to structure this a bit more, I can help with that. Perhaps using cards would be better? adding one card per deployment option and include the logo of each platform would be easier to read:

another thing you can do is to split "official guides" (either maintained by a company or chainlit's team) vs. "community guides" since the latter have a much higher chance of being unmaintained.

let me know!

[willydouhard]

Thank you! Will merge this as is and split official guides and community guides in a following PR.

[edublancas]

awesome. thanks, @willydouhard!