poetry-init: add page

[girdharagrawalbro]

Adds documentation for poetry init command.

Examples included:

• Initialize interactively
• Initialize with project name
• Initialize with description
• Initialize with author
• Initialize with dependencies
• Initialize with dev dependencies

#18042

[dmmqz]

Suggested change

	`poetry init --name {{package_name}} --author {{"Author Name <email@example.com>"}}`
	`poetry init --name {{package_name}} --author "{{Author Name <email@example.com>}}"`

https://github.com/tldr-pages/tldr/blob/main/contributing-guides/style-guide.md#placeholder-syntax

[dmmqz]

Suggested change

	`poetry init --no-interaction`
	`poetry init {{[-n|--no-interaction]}}`

https://python-poetry.org/docs/cli/#global-options