Added 1-Click Deploy tutorial

[commit111]

Fixes #161

• added normal 1-click deploy tutorial
• added custom 1-click deploy tutorial

[Prakash-Sundaresan]

Mostly looks good. Pls see specific comments.

[Prakash-Sundaresan]

Great work.
See detailed comments.

[jordanstephens]

This title feels a little indirect. What do you think about something like this:

Suggested change

	title: Adding a Custom 1-Click Deploy
	sidebar_position: 800
	description: Add a custom 1-Click Deploy button to deploy your own app.
	---
	# Adding a Custom 1-Click Deploy
	title: Using 1-Click Deploy With Your Project
	sidebar_position: 800
	description: Add a custom 1-Click Deploy button to deploy your own app.
	---
	# Using 1-Click Deploy With Your Project

[commit111]

I tried to make the title as different from the "Using 1-Click Deploy" tutorial as possible, so that it's clear for new users which one to look for first. Maybe "Adding Custom 1-Click Deploy to an App" will be a better alternative?

[jordanstephens]

How about "Adding Custom 1-Click Deploy to your App"?

Or "Deploying Your App with 1-click Deploy"

[jordanstephens]

What do you think about this? "quickstart way" felt a little ambiguous.

Suggested change

	The 1-Click Deploy button is intended to be a quickstart way for new users to deploy to the [Defang Playground](/docs/concepts/defang-playground) with no prior installation of the CLI needed.
	The 1-Click Deploy button is intended to be a quickstart guide to deploying an application to the [Defang Playground](/docs/concepts/defang-playground) with no prior installation of the CLI needed.

[commit111]

The button itself isn't a guide (as in an explicit tutorial) though, it's almost like a shortcut. Also, I think we should keep the word "new users" somewhere to make the distinction extremely clear between the other tutorial.

[commit111]

I do agree we can use a better wording than "way"

[jordanstephens]

Ohh duh. Once again, not reading in the mindset of the reader.Maybe it would be better to come on a bit more confidently, and say something like this, but it's not super important.

Suggested change

	The 1-Click Deploy button is intended to be a quickstart way for new users to deploy to the [Defang Playground](/docs/concepts/defang-playground) with no prior installation of the CLI needed.
	The 1-Click Deploy button is the easiest way for new users to deploy your project to the [Defang Playground](/docs/concepts/defang-playground). No CLI installation is required.

[commit111]

This sentence is part of the tutorial for brand-new users, so it should not say "for new users to deploy your project". I agree with the other changes here though.

[jordanstephens]

Made a few quick suggestions inline to tighten it up a little bit further, but this is looking excellent. Thank you Linda!