A minor problem about function `ffip-create-project-file`

[dalugm]

https://github.com/redguardtoo/find-file-in-project/blob/c4c7ec595c54c3006299717b1fd83e357864b2d5/find-file-in-project.el#L760

Should we add a space between the prompt string and the custom directory? And I think we should change ? to :

Just like

(read-directory-name "Project root directory: " default-directory))

Otherwise, it is difficult to distinguish between the prompt string and the directory.

[redguardtoo]

11bc01e hint minor issue (Chen Bin)

[dalugm]

@redguardtoo 谢谢，顺祝除夕快乐，希望大佬在接下来的牛年里身体健康、事业进步！🧧