Docksal command 'init-site' uses wrong syntax for site install command.

[Wylbur]

The site install command needs to be updated to use the latest arguments:

# Install site
site_install ()
{
	cd $DOCROOT_PATH

	# We disable email sending here so site-install does not return an error
	/usr/local/bin/bee/bee.php si \
		--db-name="default" \
		--db-user="user" \
		--db-pass="user" \
		--db-host="db" \
		--site-name='My Backdrop Site' \
		--username="admin" \
		--password="admin" \
		--auto
}

[shelane]

Closed via #45